72605780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{21481}}^1$

素因数の和:21516

約数の個数: 36

約数和(自身を含む): 165110652

約数和(自身を除く): 92504872

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 21481, 42962, 85924, 107405, 214810, 279253, 429620, 558506, 1117012, 1396265, 2792530, 3630289, 5585060, 7260578, 14521156, 18151445, 36302890, 72605780]

約数ペア:

[(1, 72605780), (2, 36302890), (4, 18151445), (5, 14521156), (10, 7260578), (13, 5585060), (20, 3630289), (26, 2792530), (52, 1396265), (65, 1117012), (130, 558506), (169, 429620), (260, 279253), (338, 214810), (676, 107405), (845, 85924), (1690, 42962), (3380, 21481)]