28731978

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{151}}^1$

素因数の和:232

約数の個数: 72

約数和(自身を含む): 70638048

約数和(自身を除く): 41906070

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 31, 33, 62, 66, 93, 99, 151, 186, 198, 279, 302, 341, 453, 558, 682, 906, 961, 1023, 1359, 1661, 1922, 2046, 2718, 2883, 3069, 3322, 4681, 4983, 5766, 6138, 8649, 9362, 9966, 10571, 14043, 14949, 17298, 21142, 28086, 29898, 31713, 42129, 51491, 63426, 84258, 95139, 102982, 145111, 154473, 190278, 290222, 308946, 435333, 463419, 870666, 926838, 1305999, 1596221, 2611998, 3192442, 4788663, 9577326, 14365989, 28731978]

約数ペア:

[(1, 28731978), (2, 14365989), (3, 9577326), (6, 4788663), (9, 3192442), (11, 2611998), (18, 1596221), (22, 1305999), (31, 926838), (33, 870666), (62, 463419), (66, 435333), (93, 308946), (99, 290222), (151, 190278), (186, 154473), (198, 145111), (279, 102982), (302, 95139), (341, 84258), (453, 63426), (558, 51491), (682, 42129), (906, 31713), (961, 29898), (1023, 28086), (1359, 21142), (1661, 17298), (1922, 14949), (2046, 14043), (2718, 10571), (2883, 9966), (3069, 9362), (3322, 8649), (4681, 6138), (4983, 5766)]