388700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1$

素因数の和:63

約数の個数: 54

約数和(自身を含む): 953064

約数和(自身を除く): 564364

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 25, 26, 46, 50, 52, 65, 92, 100, 115, 130, 169, 230, 260, 299, 325, 338, 460, 575, 598, 650, 676, 845, 1150, 1196, 1300, 1495, 1690, 2300, 2990, 3380, 3887, 4225, 5980, 7475, 7774, 8450, 14950, 15548, 16900, 19435, 29900, 38870, 77740, 97175, 194350, 388700]

約数ペア:

[(1, 388700), (2, 194350), (4, 97175), (5, 77740), (10, 38870), (13, 29900), (20, 19435), (23, 16900), (25, 15548), (26, 14950), (46, 8450), (50, 7774), (52, 7475), (65, 5980), (92, 4225), (100, 3887), (115, 3380), (130, 2990), (169, 2300), (230, 1690), (260, 1495), (299, 1300), (325, 1196), (338, 1150), (460, 845), (575, 676), (598, 650)]