20291240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26699}}^1$

素因数の和:26729

約数の個数: 32

約数和(自身を含む): 48060000

約数和(自身を除く): 27768760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 26699, 53398, 106796, 133495, 213592, 266990, 507281, 533980, 1014562, 1067960, 2029124, 2536405, 4058248, 5072810, 10145620, 20291240]

約数ペア:

[(1, 20291240), (2, 10145620), (4, 5072810), (5, 4058248), (8, 2536405), (10, 2029124), (19, 1067960), (20, 1014562), (38, 533980), (40, 507281), (76, 266990), (95, 213592), (152, 133495), (190, 106796), (380, 53398), (760, 26699)]