81012820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{34039}}^1$

素因数の和:34072

約数の個数: 48

約数和(自身を含む): 205873920

約数和(自身を除く): 124861100

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 34039, 68078, 136156, 170195, 238273, 340390, 476546, 578663, 680780, 953092, 1157326, 1191365, 2314652, 2382730, 2893315, 4050641, 4765460, 5786630, 8101282, 11573260, 16202564, 20253205, 40506410, 81012820]

約数ペア:

[(1, 81012820), (2, 40506410), (4, 20253205), (5, 16202564), (7, 11573260), (10, 8101282), (14, 5786630), (17, 4765460), (20, 4050641), (28, 2893315), (34, 2382730), (35, 2314652), (68, 1191365), (70, 1157326), (85, 953092), (119, 680780), (140, 578663), (170, 476546), (238, 340390), (340, 238273), (476, 170195), (595, 136156), (1190, 68078), (2380, 34039)]