128228520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{521}}^1$

素因数の和:835

約数の個数: 128

約数和(自身を含む): 441987840

約数和(自身を除く): 313759320

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, 84, 105, 120, 140, 168, 210, 280, 293, 420, 521, 586, 840, 879, 1042, 1172, 1465, 1563, 1758, 2051, 2084, 2344, 2605, 2930, 3126, 3516, 3647, 4102, 4168, 4395, 5210, 5860, 6153, 6252, 7032, 7294, 7815, 8204, 8790, 10255, 10420, 10941, 11720, 12306, 12504, 14588, 15630, 16408, 17580, 18235, 20510, 20840, 21882, 24612, 29176, 30765, 31260, 35160, 36470, 41020, 43764, 49224, 54705, 61530, 62520, 72940, 82040, 87528, 109410, 123060, 145880, 152653, 218820, 246120, 305306, 437640, 457959, 610612, 763265, 915918, 1068571, 1221224, 1526530, 1831836, 2137142, 2289795, 3053060, 3205713, 3663672, 4274284, 4579590, 5342855, 6106120, 6411426, 8548568, 9159180, 10685710, 12822852, 16028565, 18318360, 21371420, 25645704, 32057130, 42742840, 64114260, 128228520]

約数ペア:

[(1, 128228520), (2, 64114260), (3, 42742840), (4, 32057130), (5, 25645704), (6, 21371420), (7, 18318360), (8, 16028565), (10, 12822852), (12, 10685710), (14, 9159180), (15, 8548568), (20, 6411426), (21, 6106120), (24, 5342855), (28, 4579590), (30, 4274284), (35, 3663672), (40, 3205713), (42, 3053060), (56, 2289795), (60, 2137142), (70, 1831836), (84, 1526530), (105, 1221224), (120, 1068571), (140, 915918), (168, 763265), (210, 610612), (280, 457959), (293, 437640), (420, 305306), (521, 246120), (586, 218820), (840, 152653), (879, 145880), (1042, 123060), (1172, 109410), (1465, 87528), (1563, 82040), (1758, 72940), (2051, 62520), (2084, 61530), (2344, 54705), (2605, 49224), (2930, 43764), (3126, 41020), (3516, 36470), (3647, 35160), (4102, 31260), (4168, 30765), (4395, 29176), (5210, 24612), (5860, 21882), (6153, 20840), (6252, 20510), (7032, 18235), (7294, 17580), (7815, 16408), (8204, 15630), (8790, 14588), (10255, 12504), (10420, 12306), (10941, 11720)]