77657660

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{421}}^1$

素因数の和:854

約数の個数: 48

約数和(自身を含む): 171001152

約数和(自身を除く): 93343492

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 401, 421, 460, 802, 842, 1604, 1684, 2005, 2105, 4010, 4210, 8020, 8420, 9223, 9683, 18446, 19366, 36892, 38732, 46115, 48415, 92230, 96830, 168821, 184460, 193660, 337642, 675284, 844105, 1688210, 3376420, 3882883, 7765766, 15531532, 19414415, 38828830, 77657660]

約数ペア:

[(1, 77657660), (2, 38828830), (4, 19414415), (5, 15531532), (10, 7765766), (20, 3882883), (23, 3376420), (46, 1688210), (92, 844105), (115, 675284), (230, 337642), (401, 193660), (421, 184460), (460, 168821), (802, 96830), (842, 92230), (1604, 48415), (1684, 46115), (2005, 38732), (2105, 36892), (4010, 19366), (4210, 18446), (8020, 9683), (8420, 9223)]