19712280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:809

約数の個数: 128

約数和(自身を含む): 69857280

約数和(自身を除く): 50145000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 757, 840, 868, 930, 1085, 1240, 1302, 1514, 1736, 1860, 2170, 2271, 2604, 3028, 3255, 3720, 3785, 4340, 4542, 5208, 5299, 6056, 6510, 7570, 8680, 9084, 10598, 11355, 13020, 15140, 15897, 18168, 21196, 22710, 23467, 26040, 26495, 30280, 31794, 42392, 45420, 46934, 52990, 63588, 70401, 79485, 90840, 93868, 105980, 117335, 127176, 140802, 158970, 164269, 187736, 211960, 234670, 281604, 317940, 328538, 352005, 469340, 492807, 563208, 635880, 657076, 704010, 821345, 938680, 985614, 1314152, 1408020, 1642690, 1971228, 2464035, 2816040, 3285380, 3942456, 4928070, 6570760, 9856140, 19712280]

約数ペア:

[(1, 19712280), (2, 9856140), (3, 6570760), (4, 4928070), (5, 3942456), (6, 3285380), (7, 2816040), (8, 2464035), (10, 1971228), (12, 1642690), (14, 1408020), (15, 1314152), (20, 985614), (21, 938680), (24, 821345), (28, 704010), (30, 657076), (31, 635880), (35, 563208), (40, 492807), (42, 469340), (56, 352005), (60, 328538), (62, 317940), (70, 281604), (84, 234670), (93, 211960), (105, 187736), (120, 164269), (124, 158970), (140, 140802), (155, 127176), (168, 117335), (186, 105980), (210, 93868), (217, 90840), (248, 79485), (280, 70401), (310, 63588), (372, 52990), (420, 46934), (434, 45420), (465, 42392), (620, 31794), (651, 30280), (744, 26495), (757, 26040), (840, 23467), (868, 22710), (930, 21196), (1085, 18168), (1240, 15897), (1302, 15140), (1514, 13020), (1736, 11355), (1860, 10598), (2170, 9084), (2271, 8680), (2604, 7570), (3028, 6510), (3255, 6056), (3720, 5299), (3785, 5208), (4340, 4542)]