640963680

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{190763}}^1$

素因数の和:190788

約数の個数: 96

約数和(自身を含む): 2307481344

約数和(自身を除く): 1666517664

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 190763, 381526, 572289, 763052, 953815, 1144578, 1335341, 1526104, 1907630, 2289156, 2670682, 2861445, 3052208, 3815260, 4006023, 4578312, 5341364, 5722890, 6104416, 6676705, 7630520, 8012046, 9156624, 10682728, 11445780, 13353410, 15261040, 16024092, 18313248, 20030115, 21365456, 22891560, 26706820, 30522080, 32048184, 40060230, 42730912, 45783120, 53413640, 64096368, 80120460, 91566240, 106827280, 128192736, 160240920, 213654560, 320481840, 640963680]

約数ペア:

[(1, 640963680), (2, 320481840), (3, 213654560), (4, 160240920), (5, 128192736), (6, 106827280), (7, 91566240), (8, 80120460), (10, 64096368), (12, 53413640), (14, 45783120), (15, 42730912), (16, 40060230), (20, 32048184), (21, 30522080), (24, 26706820), (28, 22891560), (30, 21365456), (32, 20030115), (35, 18313248), (40, 16024092), (42, 15261040), (48, 13353410), (56, 11445780), (60, 10682728), (70, 9156624), (80, 8012046), (84, 7630520), (96, 6676705), (105, 6104416), (112, 5722890), (120, 5341364), (140, 4578312), (160, 4006023), (168, 3815260), (210, 3052208), (224, 2861445), (240, 2670682), (280, 2289156), (336, 1907630), (420, 1526104), (480, 1335341), (560, 1144578), (672, 953815), (840, 763052), (1120, 572289), (1680, 381526), (3360, 190763)]