216453920

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{449}}^1$

素因数の和:618

約数の個数: 96

約数和(自身を含む): 538876800

約数和(自身を除く): 322422880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 131, 160, 184, 230, 262, 368, 449, 460, 524, 655, 736, 898, 920, 1048, 1310, 1796, 1840, 2096, 2245, 2620, 3013, 3592, 3680, 4192, 4490, 5240, 6026, 7184, 8980, 10327, 10480, 12052, 14368, 15065, 17960, 20654, 20960, 24104, 30130, 35920, 41308, 48208, 51635, 58819, 60260, 71840, 82616, 96416, 103270, 117638, 120520, 165232, 206540, 235276, 241040, 294095, 330464, 413080, 470552, 482080, 588190, 826160, 941104, 1176380, 1352837, 1652320, 1882208, 2352760, 2705674, 4705520, 5411348, 6764185, 9411040, 10822696, 13528370, 21645392, 27056740, 43290784, 54113480, 108226960, 216453920]

約数ペア:

[(1, 216453920), (2, 108226960), (4, 54113480), (5, 43290784), (8, 27056740), (10, 21645392), (16, 13528370), (20, 10822696), (23, 9411040), (32, 6764185), (40, 5411348), (46, 4705520), (80, 2705674), (92, 2352760), (115, 1882208), (131, 1652320), (160, 1352837), (184, 1176380), (230, 941104), (262, 826160), (368, 588190), (449, 482080), (460, 470552), (524, 413080), (655, 330464), (736, 294095), (898, 241040), (920, 235276), (1048, 206540), (1310, 165232), (1796, 120520), (1840, 117638), (2096, 103270), (2245, 96416), (2620, 82616), (3013, 71840), (3592, 60260), (3680, 58819), (4192, 51635), (4490, 48208), (5240, 41308), (6026, 35920), (7184, 30130), (8980, 24104), (10327, 20960), (10480, 20654), (12052, 17960), (14368, 15065)]