205065490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{431}}^1\times {\mathrm{971}}^1$

素因数の和:1423

約数の個数: 48

約数和(自身を含む): 430821504

約数和(自身を除く): 225756014

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 431, 490, 862, 971, 1942, 2155, 3017, 4310, 4855, 6034, 6797, 9710, 13594, 15085, 21119, 30170, 33985, 42238, 47579, 67970, 95158, 105595, 211190, 237895, 418501, 475790, 837002, 2092505, 2929507, 4185010, 5859014, 14647535, 20506549, 29295070, 41013098, 102532745, 205065490]

約数ペア:

[(1, 205065490), (2, 102532745), (5, 41013098), (7, 29295070), (10, 20506549), (14, 14647535), (35, 5859014), (49, 4185010), (70, 2929507), (98, 2092505), (245, 837002), (431, 475790), (490, 418501), (862, 237895), (971, 211190), (1942, 105595), (2155, 95158), (3017, 67970), (4310, 47579), (4855, 42238), (6034, 33985), (6797, 30170), (9710, 21119), (13594, 15085)]