42789740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{929}}^1$

素因数の和:999

約数の個数: 72

約数和(自身を含む): 106868160

約数和(自身を除く): 64078420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 470, 490, 658, 929, 940, 980, 1316, 1645, 1858, 2303, 3290, 3716, 4606, 4645, 6503, 6580, 9212, 9290, 11515, 13006, 18580, 23030, 26012, 32515, 43663, 45521, 46060, 65030, 87326, 91042, 130060, 174652, 182084, 218315, 227605, 305641, 436630, 455210, 611282, 873260, 910420, 1222564, 1528205, 2139487, 3056410, 4278974, 6112820, 8557948, 10697435, 21394870, 42789740]

約数ペア:

[(1, 42789740), (2, 21394870), (4, 10697435), (5, 8557948), (7, 6112820), (10, 4278974), (14, 3056410), (20, 2139487), (28, 1528205), (35, 1222564), (47, 910420), (49, 873260), (70, 611282), (94, 455210), (98, 436630), (140, 305641), (188, 227605), (196, 218315), (235, 182084), (245, 174652), (329, 130060), (470, 91042), (490, 87326), (658, 65030), (929, 46060), (940, 45521), (980, 43663), (1316, 32515), (1645, 26012), (1858, 23030), (2303, 18580), (3290, 13006), (3716, 11515), (4606, 9290), (4645, 9212), (6503, 6580)]