64399240

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{821}}^1$

素因数の和:922

約数の個数: 64

約数和(自身を含む): 151806960

約数和(自身を除く): 87407720

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 53, 74, 106, 148, 185, 212, 265, 296, 370, 424, 530, 740, 821, 1060, 1480, 1642, 1961, 2120, 3284, 3922, 4105, 6568, 7844, 8210, 9805, 15688, 16420, 19610, 30377, 32840, 39220, 43513, 60754, 78440, 87026, 121508, 151885, 174052, 217565, 243016, 303770, 348104, 435130, 607540, 870260, 1215080, 1609981, 1740520, 3219962, 6439924, 8049905, 12879848, 16099810, 32199620, 64399240]

約数ペア:

[(1, 64399240), (2, 32199620), (4, 16099810), (5, 12879848), (8, 8049905), (10, 6439924), (20, 3219962), (37, 1740520), (40, 1609981), (53, 1215080), (74, 870260), (106, 607540), (148, 435130), (185, 348104), (212, 303770), (265, 243016), (296, 217565), (370, 174052), (424, 151885), (530, 121508), (740, 87026), (821, 78440), (1060, 60754), (1480, 43513), (1642, 39220), (1961, 32840), (2120, 30377), (3284, 19610), (3922, 16420), (4105, 15688), (6568, 9805), (7844, 8210)]