20675060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{73}}^1$

素因数の和:130

約数の個数: 108

約数和(自身を含む): 54386892

約数和(自身を除く): 33711832

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 73, 85, 98, 119, 140, 146, 170, 196, 238, 245, 289, 292, 340, 365, 476, 490, 511, 578, 595, 730, 833, 980, 1022, 1156, 1190, 1241, 1445, 1460, 1666, 2023, 2044, 2380, 2482, 2555, 2890, 3332, 3577, 4046, 4165, 4964, 5110, 5780, 6205, 7154, 8092, 8330, 8687, 10115, 10220, 12410, 14161, 14308, 16660, 17374, 17885, 20230, 21097, 24820, 28322, 34748, 35770, 40460, 42194, 43435, 56644, 60809, 70805, 71540, 84388, 86870, 105485, 121618, 141610, 147679, 173740, 210970, 243236, 283220, 295358, 304045, 421940, 590716, 608090, 738395, 1033753, 1216180, 1476790, 2067506, 2953580, 4135012, 5168765, 10337530, 20675060]

約数ペア:

[(1, 20675060), (2, 10337530), (4, 5168765), (5, 4135012), (7, 2953580), (10, 2067506), (14, 1476790), (17, 1216180), (20, 1033753), (28, 738395), (34, 608090), (35, 590716), (49, 421940), (68, 304045), (70, 295358), (73, 283220), (85, 243236), (98, 210970), (119, 173740), (140, 147679), (146, 141610), (170, 121618), (196, 105485), (238, 86870), (245, 84388), (289, 71540), (292, 70805), (340, 60809), (365, 56644), (476, 43435), (490, 42194), (511, 40460), (578, 35770), (595, 34748), (730, 28322), (833, 24820), (980, 21097), (1022, 20230), (1156, 17885), (1190, 17374), (1241, 16660), (1445, 14308), (1460, 14161), (1666, 12410), (2023, 10220), (2044, 10115), (2380, 8687), (2482, 8330), (2555, 8092), (2890, 7154), (3332, 6205), (3577, 5780), (4046, 5110), (4165, 4964)]