820620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 2568384

約数和(自身を除く): 1747764

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 97, 141, 180, 188, 194, 235, 282, 291, 388, 423, 470, 485, 564, 582, 705, 846, 873, 940, 970, 1164, 1410, 1455, 1692, 1746, 1940, 2115, 2820, 2910, 3492, 4230, 4365, 4559, 5820, 8460, 8730, 9118, 13677, 17460, 18236, 22795, 27354, 41031, 45590, 54708, 68385, 82062, 91180, 136770, 164124, 205155, 273540, 410310, 820620]

約数ペア:

[(1, 820620), (2, 410310), (3, 273540), (4, 205155), (5, 164124), (6, 136770), (9, 91180), (10, 82062), (12, 68385), (15, 54708), (18, 45590), (20, 41031), (30, 27354), (36, 22795), (45, 18236), (47, 17460), (60, 13677), (90, 9118), (94, 8730), (97, 8460), (141, 5820), (180, 4559), (188, 4365), (194, 4230), (235, 3492), (282, 2910), (291, 2820), (388, 2115), (423, 1940), (470, 1746), (485, 1692), (564, 1455), (582, 1410), (705, 1164), (846, 970), (873, 940)]