164895220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{971}}^1\times {\mathrm{1213}}^1$

素因数の和:2200

約数の個数: 48

約数和(自身を含む): 396482688

約数和(自身を除く): 231587468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 971, 1213, 1942, 2426, 3884, 4852, 4855, 6065, 6797, 8491, 9710, 12130, 13594, 16982, 19420, 24260, 27188, 33964, 33985, 42455, 67970, 84910, 135940, 169820, 1177823, 2355646, 4711292, 5889115, 8244761, 11778230, 16489522, 23556460, 32979044, 41223805, 82447610, 164895220]

約数ペア:

[(1, 164895220), (2, 82447610), (4, 41223805), (5, 32979044), (7, 23556460), (10, 16489522), (14, 11778230), (20, 8244761), (28, 5889115), (35, 4711292), (70, 2355646), (140, 1177823), (971, 169820), (1213, 135940), (1942, 84910), (2426, 67970), (3884, 42455), (4852, 33985), (4855, 33964), (6065, 27188), (6797, 24260), (8491, 19420), (9710, 16982), (12130, 13594)]