31398975

素因数分解:

$3^3\times 5^2\times {\mathrm{181}}^1\times {\mathrm{257}}^1$

素因数の和:457

約数の個数: 48

約数和(自身を含む): 58225440

約数和(自身を除く): 26826465

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 181, 225, 257, 543, 675, 771, 905, 1285, 1629, 2313, 2715, 3855, 4525, 4887, 6425, 6939, 8145, 11565, 13575, 19275, 24435, 34695, 40725, 46517, 57825, 122175, 139551, 173475, 232585, 418653, 697755, 1162925, 1255959, 2093265, 3488775, 6279795, 10466325, 31398975]

約数ペア:

[(1, 31398975), (3, 10466325), (5, 6279795), (9, 3488775), (15, 2093265), (25, 1255959), (27, 1162925), (45, 697755), (75, 418653), (135, 232585), (181, 173475), (225, 139551), (257, 122175), (543, 57825), (675, 46517), (771, 40725), (905, 34695), (1285, 24435), (1629, 19275), (2313, 13575), (2715, 11565), (3855, 8145), (4525, 6939), (4887, 6425)]