20180180825

素因数分解:

$5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{2341}}^1$

素因数の和:2623

約数の個数: 72

約数和(自身を含む): 30193138944

約数和(自身を除く): 10012958119

約数列:

[1, 5, 7, 25, 31, 35, 49, 155, 175, 217, 227, 245, 775, 1085, 1135, 1225, 1519, 1589, 2341, 5425, 5675, 7037, 7595, 7945, 11123, 11705, 16387, 35185, 37975, 39725, 49259, 55615, 58525, 72571, 81935, 114709, 175925, 246295, 278075, 344813, 362855, 409675, 507997, 531407, 573545, 1231475, 1724065, 1814275, 2539985, 2657035, 2867725, 3555979, 3719849, 8620325, 12699925, 13285175, 16473617, 17779895, 18599245, 26038943, 82368085, 88899475, 92996225, 115315319, 130194715, 411840425, 576576595, 650973575, 807207233, 2882882975, 4036036165, 20180180825]

約数ペア:

[(1, 20180180825), (5, 4036036165), (7, 2882882975), (25, 807207233), (31, 650973575), (35, 576576595), (49, 411840425), (155, 130194715), (175, 115315319), (217, 92996225), (227, 88899475), (245, 82368085), (775, 26038943), (1085, 18599245), (1135, 17779895), (1225, 16473617), (1519, 13285175), (1589, 12699925), (2341, 8620325), (5425, 3719849), (5675, 3555979), (7037, 2867725), (7595, 2657035), (7945, 2539985), (11123, 1814275), (11705, 1724065), (16387, 1231475), (35185, 573545), (37975, 531407), (39725, 507997), (49259, 409675), (55615, 362855), (58525, 344813), (72571, 278075), (81935, 246295), (114709, 175925)]