1720221265

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{601}}^1\times {\mathrm{1543}}^1$

素因数の和:2209

約数の個数: 32

約数和(自身を含む): 2409232896

約数和(自身を除く): 689011631

約数列:

[1, 5, 7, 35, 53, 265, 371, 601, 1543, 1855, 3005, 4207, 7715, 10801, 21035, 31853, 54005, 81779, 159265, 222971, 408895, 572453, 927343, 1114855, 2862265, 4636715, 6491401, 32457005, 49149179, 245745895, 344044253, 1720221265]

約数ペア:

[(1, 1720221265), (5, 344044253), (7, 245745895), (35, 49149179), (53, 32457005), (265, 6491401), (371, 4636715), (601, 2862265), (1543, 1114855), (1855, 927343), (3005, 572453), (4207, 408895), (7715, 222971), (10801, 159265), (21035, 81779), (31853, 54005)]