315881800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{121493}}^1$

素因数の和:121522

約数の個数: 48

約数和(自身を含む): 790925940

約数和(自身を除く): 475044140

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 121493, 242986, 485972, 607465, 971944, 1214930, 1579409, 2429860, 3037325, 3158818, 4859720, 6074650, 6317636, 7897045, 12149300, 12635272, 15794090, 24298600, 31588180, 39485225, 63176360, 78970450, 157940900, 315881800]

約数ペア:

[(1, 315881800), (2, 157940900), (4, 78970450), (5, 63176360), (8, 39485225), (10, 31588180), (13, 24298600), (20, 15794090), (25, 12635272), (26, 12149300), (40, 7897045), (50, 6317636), (52, 6074650), (65, 4859720), (100, 3158818), (104, 3037325), (130, 2429860), (200, 1579409), (260, 1214930), (325, 971944), (520, 607465), (650, 485972), (1300, 242986), (2600, 121493)]