212144080

素因数分解:

$2^4\times 5^1\times {\mathrm{971}}^1\times {\mathrm{2731}}^1$

素因数の和:3715

約数の個数: 40

約数和(自身を含む): 493923744

約数和(自身を除く): 281779664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 971, 1942, 2731, 3884, 4855, 5462, 7768, 9710, 10924, 13655, 15536, 19420, 21848, 27310, 38840, 43696, 54620, 77680, 109240, 218480, 2651801, 5303602, 10607204, 13259005, 21214408, 26518010, 42428816, 53036020, 106072040, 212144080]

約数ペア:

[(1, 212144080), (2, 106072040), (4, 53036020), (5, 42428816), (8, 26518010), (10, 21214408), (16, 13259005), (20, 10607204), (40, 5303602), (80, 2651801), (971, 218480), (1942, 109240), (2731, 77680), (3884, 54620), (4855, 43696), (5462, 38840), (7768, 27310), (9710, 21848), (10924, 19420), (13655, 15536)]