156931568680

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1123}}^1\times {\mathrm{21433}}^1$

素因数の和:22730

約数の個数: 64

約数和(自身を含む): 355595204160

約数和(自身を除く): 198663635480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1123, 1304, 1630, 2246, 3260, 4492, 5615, 6520, 8984, 11230, 21433, 22460, 42866, 44920, 85732, 107165, 171464, 183049, 214330, 366098, 428660, 732196, 857320, 915245, 1464392, 1830490, 3493579, 3660980, 6987158, 7321960, 13974316, 17467895, 24069259, 27948632, 34935790, 48138518, 69871580, 96277036, 120346295, 139743160, 192554072, 240692590, 481385180, 962770360, 3923289217, 7846578434, 15693156868, 19616446085, 31386313736, 39232892170, 78465784340, 156931568680]

約数ペア:

[(1, 156931568680), (2, 78465784340), (4, 39232892170), (5, 31386313736), (8, 19616446085), (10, 15693156868), (20, 7846578434), (40, 3923289217), (163, 962770360), (326, 481385180), (652, 240692590), (815, 192554072), (1123, 139743160), (1304, 120346295), (1630, 96277036), (2246, 69871580), (3260, 48138518), (4492, 34935790), (5615, 27948632), (6520, 24069259), (8984, 17467895), (11230, 13974316), (21433, 7321960), (22460, 6987158), (42866, 3660980), (44920, 3493579), (85732, 1830490), (107165, 1464392), (171464, 915245), (183049, 857320), (214330, 732196), (366098, 428660)]