31072440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:613

約数の個数: 128

約数和(自身を含む): 108241920

約数和(自身を除く): 77169480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 355, 420, 426, 497, 521, 568, 710, 840, 852, 994, 1042, 1065, 1420, 1491, 1563, 1704, 1988, 2084, 2130, 2485, 2605, 2840, 2982, 3126, 3647, 3976, 4168, 4260, 4970, 5210, 5964, 6252, 7294, 7455, 7815, 8520, 9940, 10420, 10941, 11928, 12504, 14588, 14910, 15630, 18235, 19880, 20840, 21882, 29176, 29820, 31260, 36470, 36991, 43764, 54705, 59640, 62520, 72940, 73982, 87528, 109410, 110973, 145880, 147964, 184955, 218820, 221946, 258937, 295928, 369910, 437640, 443892, 517874, 554865, 739820, 776811, 887784, 1035748, 1109730, 1294685, 1479640, 1553622, 2071496, 2219460, 2589370, 3107244, 3884055, 4438920, 5178740, 6214488, 7768110, 10357480, 15536220, 31072440]

約数ペア:

[(1, 31072440), (2, 15536220), (3, 10357480), (4, 7768110), (5, 6214488), (6, 5178740), (7, 4438920), (8, 3884055), (10, 3107244), (12, 2589370), (14, 2219460), (15, 2071496), (20, 1553622), (21, 1479640), (24, 1294685), (28, 1109730), (30, 1035748), (35, 887784), (40, 776811), (42, 739820), (56, 554865), (60, 517874), (70, 443892), (71, 437640), (84, 369910), (105, 295928), (120, 258937), (140, 221946), (142, 218820), (168, 184955), (210, 147964), (213, 145880), (280, 110973), (284, 109410), (355, 87528), (420, 73982), (426, 72940), (497, 62520), (521, 59640), (568, 54705), (710, 43764), (840, 36991), (852, 36470), (994, 31260), (1042, 29820), (1065, 29176), (1420, 21882), (1491, 20840), (1563, 19880), (1704, 18235), (1988, 15630), (2084, 14910), (2130, 14588), (2485, 12504), (2605, 11928), (2840, 10941), (2982, 10420), (3126, 9940), (3647, 8520), (3976, 7815), (4168, 7455), (4260, 7294), (4970, 6252), (5210, 5964)]