1851721340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{3061}}^1$

素因数の和:3255

約数の個数: 96

約数和(自身を含む): 4629744000

約数和(自身を除く): 2778022660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 149, 203, 290, 298, 406, 580, 596, 745, 812, 1015, 1043, 1490, 2030, 2086, 2980, 3061, 4060, 4172, 4321, 5215, 6122, 8642, 10430, 12244, 15305, 17284, 20860, 21427, 21605, 30247, 30610, 42854, 43210, 60494, 61220, 85708, 86420, 88769, 107135, 120988, 151235, 177538, 214270, 302470, 355076, 428540, 443845, 456089, 604940, 621383, 887690, 912178, 1242766, 1775380, 1824356, 2280445, 2485532, 3106915, 3192623, 4560890, 6213830, 6385246, 9121780, 12427660, 12770492, 13226581, 15963115, 26453162, 31926230, 52906324, 63852460, 66132905, 92586067, 132265810, 185172134, 264531620, 370344268, 462930335, 925860670, 1851721340]

約数ペア:

[(1, 1851721340), (2, 925860670), (4, 462930335), (5, 370344268), (7, 264531620), (10, 185172134), (14, 132265810), (20, 92586067), (28, 66132905), (29, 63852460), (35, 52906324), (58, 31926230), (70, 26453162), (116, 15963115), (140, 13226581), (145, 12770492), (149, 12427660), (203, 9121780), (290, 6385246), (298, 6213830), (406, 4560890), (580, 3192623), (596, 3106915), (745, 2485532), (812, 2280445), (1015, 1824356), (1043, 1775380), (1490, 1242766), (2030, 912178), (2086, 887690), (2980, 621383), (3061, 604940), (4060, 456089), (4172, 443845), (4321, 428540), (5215, 355076), (6122, 302470), (8642, 214270), (10430, 177538), (12244, 151235), (15305, 120988), (17284, 107135), (20860, 88769), (21427, 86420), (21605, 85708), (30247, 61220), (30610, 60494), (42854, 43210)]