81800520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9601}}^1$

素因数の和:9686

約数の個数: 64

約数和(自身を含む): 248883840

約数和(自身を除く): 167083320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2840, 4260, 8520, 9601, 19202, 28803, 38404, 48005, 57606, 76808, 96010, 115212, 144015, 192020, 230424, 288030, 384040, 576060, 681671, 1152120, 1363342, 2045013, 2726684, 3408355, 4090026, 5453368, 6816710, 8180052, 10225065, 13633420, 16360104, 20450130, 27266840, 40900260, 81800520]

約数ペア:

[(1, 81800520), (2, 40900260), (3, 27266840), (4, 20450130), (5, 16360104), (6, 13633420), (8, 10225065), (10, 8180052), (12, 6816710), (15, 5453368), (20, 4090026), (24, 3408355), (30, 2726684), (40, 2045013), (60, 1363342), (71, 1152120), (120, 681671), (142, 576060), (213, 384040), (284, 288030), (355, 230424), (426, 192020), (568, 144015), (710, 115212), (852, 96010), (1065, 76808), (1420, 57606), (1704, 48005), (2130, 38404), (2840, 28803), (4260, 19202), (8520, 9601)]