89742820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{359}}^1\times {\mathrm{431}}^1$

素因数の和:828

約数の個数: 48

約数和(自身を含む): 195955200

約数和(自身を除く): 106212380

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 359, 431, 580, 718, 862, 1436, 1724, 1795, 2155, 3590, 4310, 7180, 8620, 10411, 12499, 20822, 24998, 41644, 49996, 52055, 62495, 104110, 124990, 154729, 208220, 249980, 309458, 618916, 773645, 1547290, 3094580, 4487141, 8974282, 17948564, 22435705, 44871410, 89742820]

約数ペア:

[(1, 89742820), (2, 44871410), (4, 22435705), (5, 17948564), (10, 8974282), (20, 4487141), (29, 3094580), (58, 1547290), (116, 773645), (145, 618916), (290, 309458), (359, 249980), (431, 208220), (580, 154729), (718, 124990), (862, 104110), (1436, 62495), (1724, 52055), (1795, 49996), (2155, 41644), (3590, 24998), (4310, 20822), (7180, 12499), (8620, 10411)]