18635440

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3191}}^1$

素因数の和:3277

約数の個数: 40

約数和(自身を含む): 43934688

約数和(自身を除く): 25299248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 3191, 5840, 6382, 12764, 15955, 25528, 31910, 51056, 63820, 127640, 232943, 255280, 465886, 931772, 1164715, 1863544, 2329430, 3727088, 4658860, 9317720, 18635440]

約数ペア:

[(1, 18635440), (2, 9317720), (4, 4658860), (5, 3727088), (8, 2329430), (10, 1863544), (16, 1164715), (20, 931772), (40, 465886), (73, 255280), (80, 232943), (146, 127640), (292, 63820), (365, 51056), (584, 31910), (730, 25528), (1168, 15955), (1460, 12764), (2920, 6382), (3191, 5840)]