128672680

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1\times {\mathrm{383}}^1$

素因数の和:658

約数の個数: 64

約数和(自身を含む): 299427840

約数和(自身を除く): 170755160

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 227, 296, 370, 383, 454, 740, 766, 908, 1135, 1480, 1532, 1816, 1915, 2270, 3064, 3830, 4540, 7660, 8399, 9080, 14171, 15320, 16798, 28342, 33596, 41995, 56684, 67192, 70855, 83990, 86941, 113368, 141710, 167980, 173882, 283420, 335960, 347764, 434705, 566840, 695528, 869410, 1738820, 3216817, 3477640, 6433634, 12867268, 16084085, 25734536, 32168170, 64336340, 128672680]

約数ペア:

[(1, 128672680), (2, 64336340), (4, 32168170), (5, 25734536), (8, 16084085), (10, 12867268), (20, 6433634), (37, 3477640), (40, 3216817), (74, 1738820), (148, 869410), (185, 695528), (227, 566840), (296, 434705), (370, 347764), (383, 335960), (454, 283420), (740, 173882), (766, 167980), (908, 141710), (1135, 113368), (1480, 86941), (1532, 83990), (1816, 70855), (1915, 67192), (2270, 56684), (3064, 41995), (3830, 33596), (4540, 28342), (7660, 16798), (8399, 15320), (9080, 14171)]