28067220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{739}}^1$

素因数の和:965

約数の個数: 72

約数和(自身を含む): 85656480

約数和(自身を除く): 57589260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 633, 739, 844, 1055, 1266, 1478, 1899, 2110, 2217, 2532, 2956, 3165, 3695, 3798, 4220, 4434, 6330, 6651, 7390, 7596, 8868, 9495, 11085, 12660, 13302, 14780, 18990, 22170, 26604, 33255, 37980, 44340, 66510, 133020, 155929, 311858, 467787, 623716, 779645, 935574, 1403361, 1559290, 1871148, 2338935, 2806722, 3118580, 4677870, 5613444, 7016805, 9355740, 14033610, 28067220]

約数ペア:

[(1, 28067220), (2, 14033610), (3, 9355740), (4, 7016805), (5, 5613444), (6, 4677870), (9, 3118580), (10, 2806722), (12, 2338935), (15, 1871148), (18, 1559290), (20, 1403361), (30, 935574), (36, 779645), (45, 623716), (60, 467787), (90, 311858), (180, 155929), (211, 133020), (422, 66510), (633, 44340), (739, 37980), (844, 33255), (1055, 26604), (1266, 22170), (1478, 18990), (1899, 14780), (2110, 13302), (2217, 12660), (2532, 11085), (2956, 9495), (3165, 8868), (3695, 7596), (3798, 7390), (4220, 6651), (4434, 6330)]