818372720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:415

約数の個数: 160

約数和(自身を含む): 2168432640

約数和(自身を除く): 1350059920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 131, 155, 176, 220, 229, 248, 262, 310, 341, 440, 458, 496, 524, 620, 655, 682, 880, 916, 1048, 1145, 1240, 1310, 1364, 1441, 1705, 1832, 2096, 2290, 2480, 2519, 2620, 2728, 2882, 3410, 3664, 4061, 4580, 5038, 5240, 5456, 5764, 6820, 7099, 7205, 8122, 9160, 10076, 10480, 11528, 12595, 13640, 14198, 14410, 16244, 18320, 20152, 20305, 23056, 25190, 27280, 28396, 28820, 29999, 32488, 35495, 40304, 40610, 44671, 50380, 56792, 57640, 59998, 64976, 70990, 78089, 81220, 89342, 100760, 113584, 115280, 119996, 141980, 149995, 156178, 162440, 178684, 201520, 223355, 239992, 283960, 299990, 312356, 324880, 329989, 357368, 390445, 446710, 479984, 567920, 599980, 624712, 659978, 714736, 780890, 893420, 929969, 1199960, 1249424, 1319956, 1561780, 1649945, 1786840, 1859938, 2399920, 2639912, 3123560, 3299890, 3573680, 3719876, 4649845, 5279824, 6247120, 6599780, 7439752, 9299690, 10229659, 13199560, 14879504, 18599380, 20459318, 26399120, 37198760, 40918636, 51148295, 74397520, 81837272, 102296590, 163674544, 204593180, 409186360, 818372720]

約数ペア:

[(1, 818372720), (2, 409186360), (4, 204593180), (5, 163674544), (8, 102296590), (10, 81837272), (11, 74397520), (16, 51148295), (20, 40918636), (22, 37198760), (31, 26399120), (40, 20459318), (44, 18599380), (55, 14879504), (62, 13199560), (80, 10229659), (88, 9299690), (110, 7439752), (124, 6599780), (131, 6247120), (155, 5279824), (176, 4649845), (220, 3719876), (229, 3573680), (248, 3299890), (262, 3123560), (310, 2639912), (341, 2399920), (440, 1859938), (458, 1786840), (496, 1649945), (524, 1561780), (620, 1319956), (655, 1249424), (682, 1199960), (880, 929969), (916, 893420), (1048, 780890), (1145, 714736), (1240, 659978), (1310, 624712), (1364, 599980), (1441, 567920), (1705, 479984), (1832, 446710), (2096, 390445), (2290, 357368), (2480, 329989), (2519, 324880), (2620, 312356), (2728, 299990), (2882, 283960), (3410, 239992), (3664, 223355), (4061, 201520), (4580, 178684), (5038, 162440), (5240, 156178), (5456, 149995), (5764, 141980), (6820, 119996), (7099, 115280), (7205, 113584), (8122, 100760), (9160, 89342), (10076, 81220), (10480, 78089), (11528, 70990), (12595, 64976), (13640, 59998), (14198, 57640), (14410, 56792), (16244, 50380), (18320, 44671), (20152, 40610), (20305, 40304), (23056, 35495), (25190, 32488), (27280, 29999), (28396, 28820)]