661531440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{2756381}}^1$

素因数の和:2756397

約数の個数: 40

約数和(自身を含む): 2050748208

約数和(自身を除く): 1389216768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 2756381, 5512762, 8269143, 11025524, 13781905, 16538286, 22051048, 27563810, 33076572, 41345715, 44102096, 55127620, 66153144, 82691430, 110255240, 132306288, 165382860, 220510480, 330765720, 661531440]

約数ペア:

[(1, 661531440), (2, 330765720), (3, 220510480), (4, 165382860), (5, 132306288), (6, 110255240), (8, 82691430), (10, 66153144), (12, 55127620), (15, 44102096), (16, 41345715), (20, 33076572), (24, 27563810), (30, 22051048), (40, 16538286), (48, 13781905), (60, 11025524), (80, 8269143), (120, 5512762), (240, 2756381)]