218880280

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{74959}}^1$

素因数の和:75043

約数の個数: 32

約数和(自身を含む): 499233600

約数和(自身を除く): 280353320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 74959, 149918, 299836, 374795, 599672, 749590, 1499180, 2998360, 5472007, 10944014, 21888028, 27360035, 43776056, 54720070, 109440140, 218880280]

約数ペア:

[(1, 218880280), (2, 109440140), (4, 54720070), (5, 43776056), (8, 27360035), (10, 21888028), (20, 10944014), (40, 5472007), (73, 2998360), (146, 1499180), (292, 749590), (365, 599672), (584, 374795), (730, 299836), (1460, 149918), (2920, 74959)]