31282875

素因数分解:

$3^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:91

約数の個数: 128

約数和(自身を含む): 67092480

約数和(自身を除く): 35809605

約数列:

[1, 3, 5, 9, 13, 15, 23, 25, 27, 31, 39, 45, 65, 69, 75, 93, 115, 117, 125, 135, 155, 195, 207, 225, 279, 299, 325, 345, 351, 375, 403, 465, 575, 585, 621, 675, 713, 775, 837, 897, 975, 1035, 1125, 1209, 1395, 1495, 1625, 1725, 1755, 2015, 2139, 2325, 2691, 2875, 2925, 3105, 3375, 3565, 3627, 3875, 4185, 4485, 4875, 5175, 6045, 6417, 6975, 7475, 8073, 8625, 8775, 9269, 10075, 10695, 10881, 11625, 13455, 14625, 15525, 17825, 18135, 19251, 20925, 22425, 25875, 27807, 30225, 32085, 34875, 37375, 40365, 43875, 46345, 50375, 53475, 54405, 67275, 77625, 83421, 89125, 90675, 96255, 104625, 112125, 139035, 151125, 160425, 201825, 231725, 250263, 267375, 272025, 336375, 417105, 453375, 481275, 695175, 802125, 1009125, 1158625, 1251315, 1360125, 2085525, 2406375, 3475875, 6256575, 10427625, 31282875]

約数ペア:

[(1, 31282875), (3, 10427625), (5, 6256575), (9, 3475875), (13, 2406375), (15, 2085525), (23, 1360125), (25, 1251315), (27, 1158625), (31, 1009125), (39, 802125), (45, 695175), (65, 481275), (69, 453375), (75, 417105), (93, 336375), (115, 272025), (117, 267375), (125, 250263), (135, 231725), (155, 201825), (195, 160425), (207, 151125), (225, 139035), (279, 112125), (299, 104625), (325, 96255), (345, 90675), (351, 89125), (375, 83421), (403, 77625), (465, 67275), (575, 54405), (585, 53475), (621, 50375), (675, 46345), (713, 43875), (775, 40365), (837, 37375), (897, 34875), (975, 32085), (1035, 30225), (1125, 27807), (1209, 25875), (1395, 22425), (1495, 20925), (1625, 19251), (1725, 18135), (1755, 17825), (2015, 15525), (2139, 14625), (2325, 13455), (2691, 11625), (2875, 10881), (2925, 10695), (3105, 10075), (3375, 9269), (3565, 8775), (3627, 8625), (3875, 8073), (4185, 7475), (4485, 6975), (4875, 6417), (5175, 6045)]