649700480

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:303

約数の個数: 256

約数和(自身を含む): 1891814400

約数和(自身を除く): 1242113920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 31, 32, 40, 44, 52, 55, 62, 64, 65, 80, 88, 104, 110, 124, 128, 130, 143, 155, 160, 176, 208, 220, 229, 248, 260, 286, 310, 320, 341, 352, 403, 416, 440, 458, 496, 520, 572, 620, 640, 682, 704, 715, 806, 832, 880, 916, 992, 1040, 1144, 1145, 1240, 1364, 1408, 1430, 1612, 1664, 1705, 1760, 1832, 1984, 2015, 2080, 2288, 2290, 2480, 2519, 2728, 2860, 2977, 3224, 3410, 3520, 3664, 3968, 4030, 4160, 4433, 4576, 4580, 4960, 5038, 5456, 5720, 5954, 6448, 6820, 7040, 7099, 7328, 8060, 8320, 8866, 9152, 9160, 9920, 10076, 10912, 11440, 11908, 12595, 12896, 13640, 14198, 14656, 14885, 16120, 17732, 18304, 18320, 19840, 20152, 21824, 22165, 22880, 23816, 25190, 25792, 27280, 28396, 29312, 29770, 32240, 32747, 35464, 35495, 36640, 40304, 43648, 44330, 45760, 47632, 50380, 51584, 54560, 56792, 59540, 64480, 65494, 70928, 70990, 73280, 78089, 80608, 88660, 91520, 92287, 95264, 100760, 109120, 113584, 119080, 128960, 130988, 141856, 141980, 146560, 156178, 161216, 163735, 177320, 184574, 190528, 201520, 218240, 227168, 238160, 257920, 261976, 283712, 283960, 312356, 322432, 327470, 354640, 369148, 381056, 390445, 403040, 454336, 461435, 476320, 523952, 567424, 567920, 624712, 654940, 709280, 738296, 780890, 806080, 908672, 922870, 952640, 1015157, 1047904, 1135840, 1249424, 1309880, 1418560, 1476592, 1561780, 1612160, 1845740, 1905280, 2030314, 2095808, 2271680, 2498848, 2619760, 2837120, 2953184, 3123560, 3691480, 4060628, 4191616, 4543360, 4997696, 5075785, 5239520, 5906368, 6247120, 7382960, 8121256, 9995392, 10151570, 10479040, 11812736, 12494240, 14765920, 16242512, 20303140, 20958080, 24988480, 29531840, 32485024, 40606280, 49976960, 59063680, 64970048, 81212560, 129940096, 162425120, 324850240, 649700480]

約数ペア:

[(1, 649700480), (2, 324850240), (4, 162425120), (5, 129940096), (8, 81212560), (10, 64970048), (11, 59063680), (13, 49976960), (16, 40606280), (20, 32485024), (22, 29531840), (26, 24988480), (31, 20958080), (32, 20303140), (40, 16242512), (44, 14765920), (52, 12494240), (55, 11812736), (62, 10479040), (64, 10151570), (65, 9995392), (80, 8121256), (88, 7382960), (104, 6247120), (110, 5906368), (124, 5239520), (128, 5075785), (130, 4997696), (143, 4543360), (155, 4191616), (160, 4060628), (176, 3691480), (208, 3123560), (220, 2953184), (229, 2837120), (248, 2619760), (260, 2498848), (286, 2271680), (310, 2095808), (320, 2030314), (341, 1905280), (352, 1845740), (403, 1612160), (416, 1561780), (440, 1476592), (458, 1418560), (496, 1309880), (520, 1249424), (572, 1135840), (620, 1047904), (640, 1015157), (682, 952640), (704, 922870), (715, 908672), (806, 806080), (832, 780890), (880, 738296), (916, 709280), (992, 654940), (1040, 624712), (1144, 567920), (1145, 567424), (1240, 523952), (1364, 476320), (1408, 461435), (1430, 454336), (1612, 403040), (1664, 390445), (1705, 381056), (1760, 369148), (1832, 354640), (1984, 327470), (2015, 322432), (2080, 312356), (2288, 283960), (2290, 283712), (2480, 261976), (2519, 257920), (2728, 238160), (2860, 227168), (2977, 218240), (3224, 201520), (3410, 190528), (3520, 184574), (3664, 177320), (3968, 163735), (4030, 161216), (4160, 156178), (4433, 146560), (4576, 141980), (4580, 141856), (4960, 130988), (5038, 128960), (5456, 119080), (5720, 113584), (5954, 109120), (6448, 100760), (6820, 95264), (7040, 92287), (7099, 91520), (7328, 88660), (8060, 80608), (8320, 78089), (8866, 73280), (9152, 70990), (9160, 70928), (9920, 65494), (10076, 64480), (10912, 59540), (11440, 56792), (11908, 54560), (12595, 51584), (12896, 50380), (13640, 47632), (14198, 45760), (14656, 44330), (14885, 43648), (16120, 40304), (17732, 36640), (18304, 35495), (18320, 35464), (19840, 32747), (20152, 32240), (21824, 29770), (22165, 29312), (22880, 28396), (23816, 27280), (25190, 25792)]