18315620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 40877760

約数和(自身を除く): 22562140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 157, 190, 307, 314, 380, 614, 628, 785, 1228, 1535, 1570, 2983, 3070, 3140, 5833, 5966, 6140, 11666, 11932, 14915, 23332, 29165, 29830, 48199, 58330, 59660, 96398, 116660, 192796, 240995, 481990, 915781, 963980, 1831562, 3663124, 4578905, 9157810, 18315620]

約数ペア:

[(1, 18315620), (2, 9157810), (4, 4578905), (5, 3663124), (10, 1831562), (19, 963980), (20, 915781), (38, 481990), (76, 240995), (95, 192796), (157, 116660), (190, 96398), (307, 59660), (314, 58330), (380, 48199), (614, 29830), (628, 29165), (785, 23332), (1228, 14915), (1535, 11932), (1570, 11666), (2983, 6140), (3070, 5966), (3140, 5833)]