561809640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{668821}}^1$

素因数の和:668842

約数の個数: 64

約数和(自身を含む): 1926207360

約数和(自身を除く): 1364397720

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, 420, 840, 668821, 1337642, 2006463, 2675284, 3344105, 4012926, 4681747, 5350568, 6688210, 8025852, 9363494, 10032315, 13376420, 14045241, 16051704, 18726988, 20064630, 23408735, 26752840, 28090482, 37453976, 40129260, 46817470, 56180964, 70226205, 80258520, 93634940, 112361928, 140452410, 187269880, 280904820, 561809640]

約数ペア:

[(1, 561809640), (2, 280904820), (3, 187269880), (4, 140452410), (5, 112361928), (6, 93634940), (7, 80258520), (8, 70226205), (10, 56180964), (12, 46817470), (14, 40129260), (15, 37453976), (20, 28090482), (21, 26752840), (24, 23408735), (28, 20064630), (30, 18726988), (35, 16051704), (40, 14045241), (42, 13376420), (56, 10032315), (60, 9363494), (70, 8025852), (84, 6688210), (105, 5350568), (120, 4681747), (140, 4012926), (168, 3344105), (210, 2675284), (280, 2006463), (420, 1337642), (840, 668821)]