20958080

素因数分解:

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

素因数の和:272

約数の個数: 128

約数和(自身を含む): 59119200

約数和(自身を除く): 38161120

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 128, 130, 143, 160, 176, 208, 220, 229, 260, 286, 320, 352, 416, 440, 458, 520, 572, 640, 704, 715, 832, 880, 916, 1040, 1144, 1145, 1408, 1430, 1664, 1760, 1832, 2080, 2288, 2290, 2519, 2860, 2977, 3520, 3664, 4160, 4576, 4580, 5038, 5720, 5954, 7040, 7328, 8320, 9152, 9160, 10076, 11440, 11908, 12595, 14656, 14885, 18304, 18320, 20152, 22880, 23816, 25190, 29312, 29770, 32747, 36640, 40304, 45760, 47632, 50380, 59540, 65494, 73280, 80608, 91520, 95264, 100760, 119080, 130988, 146560, 161216, 163735, 190528, 201520, 238160, 261976, 322432, 327470, 381056, 403040, 476320, 523952, 654940, 806080, 952640, 1047904, 1309880, 1612160, 1905280, 2095808, 2619760, 4191616, 5239520, 10479040, 20958080]

約数ペア:

[(1, 20958080), (2, 10479040), (4, 5239520), (5, 4191616), (8, 2619760), (10, 2095808), (11, 1905280), (13, 1612160), (16, 1309880), (20, 1047904), (22, 952640), (26, 806080), (32, 654940), (40, 523952), (44, 476320), (52, 403040), (55, 381056), (64, 327470), (65, 322432), (80, 261976), (88, 238160), (104, 201520), (110, 190528), (128, 163735), (130, 161216), (143, 146560), (160, 130988), (176, 119080), (208, 100760), (220, 95264), (229, 91520), (260, 80608), (286, 73280), (320, 65494), (352, 59540), (416, 50380), (440, 47632), (458, 45760), (520, 40304), (572, 36640), (640, 32747), (704, 29770), (715, 29312), (832, 25190), (880, 23816), (916, 22880), (1040, 20152), (1144, 18320), (1145, 18304), (1408, 14885), (1430, 14656), (1664, 12595), (1760, 11908), (1832, 11440), (2080, 10076), (2288, 9160), (2290, 9152), (2519, 8320), (2860, 7328), (2977, 7040), (3520, 5954), (3664, 5720), (4160, 5038), (4576, 4580)]