20149893190

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{457}}^1\times {\mathrm{89983}}^1$

素因数の和:90461

約数の個数: 48

約数和(自身を含む): 42284201472

約数和(自身を除く): 22134308282

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 457, 490, 914, 2285, 3199, 4570, 6398, 15995, 22393, 31990, 44786, 89983, 111965, 179966, 223930, 449915, 629881, 899830, 1259762, 3149405, 4409167, 6298810, 8818334, 22045835, 41122231, 44091670, 82244462, 205611155, 287855617, 411222310, 575711234, 1439278085, 2014989319, 2878556170, 4029978638, 10074946595, 20149893190]

約数ペア:

[(1, 20149893190), (2, 10074946595), (5, 4029978638), (7, 2878556170), (10, 2014989319), (14, 1439278085), (35, 575711234), (49, 411222310), (70, 287855617), (98, 205611155), (245, 82244462), (457, 44091670), (490, 41122231), (914, 22045835), (2285, 8818334), (3199, 6298810), (4570, 4409167), (6398, 3149405), (15995, 1259762), (22393, 899830), (31990, 629881), (44786, 449915), (89983, 223930), (111965, 179966)]