28711908

素因数分解:

$2^2\times 3^5\times {\mathrm{109}}^1\times {\mathrm{271}}^1$

素因数の和:399

約数の個数: 72

約数和(自身を含む): 76236160

約数和(自身を除く): 47524252

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 109, 162, 218, 243, 271, 324, 327, 436, 486, 542, 654, 813, 972, 981, 1084, 1308, 1626, 1962, 2439, 2943, 3252, 3924, 4878, 5886, 7317, 8829, 9756, 11772, 14634, 17658, 21951, 26487, 29268, 29539, 35316, 43902, 52974, 59078, 65853, 87804, 88617, 105948, 118156, 131706, 177234, 263412, 265851, 354468, 531702, 797553, 1063404, 1595106, 2392659, 3190212, 4785318, 7177977, 9570636, 14355954, 28711908]

約数ペア:

[(1, 28711908), (2, 14355954), (3, 9570636), (4, 7177977), (6, 4785318), (9, 3190212), (12, 2392659), (18, 1595106), (27, 1063404), (36, 797553), (54, 531702), (81, 354468), (108, 265851), (109, 263412), (162, 177234), (218, 131706), (243, 118156), (271, 105948), (324, 88617), (327, 87804), (436, 65853), (486, 59078), (542, 52974), (654, 43902), (813, 35316), (972, 29539), (981, 29268), (1084, 26487), (1308, 21951), (1626, 17658), (1962, 14634), (2439, 11772), (2943, 9756), (3252, 8829), (3924, 7317), (4878, 5886)]