28069210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{977}}^1$

素因数の和:1027

約数の個数: 48

約数和(自身を含む): 57987576

約数和(自身を除く): 29918366

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 169, 170, 221, 338, 442, 845, 977, 1105, 1690, 1954, 2210, 2873, 4885, 5746, 9770, 12701, 14365, 16609, 25402, 28730, 33218, 63505, 83045, 127010, 165113, 166090, 215917, 330226, 431834, 825565, 1079585, 1651130, 2159170, 2806921, 5613842, 14034605, 28069210]

約数ペア:

[(1, 28069210), (2, 14034605), (5, 5613842), (10, 2806921), (13, 2159170), (17, 1651130), (26, 1079585), (34, 825565), (65, 431834), (85, 330226), (130, 215917), (169, 166090), (170, 165113), (221, 127010), (338, 83045), (442, 63505), (845, 33218), (977, 28730), (1105, 25402), (1690, 16609), (1954, 14365), (2210, 12701), (2873, 9770), (4885, 5746)]