1621365040

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1\times {\mathrm{887}}^1$

素因数の和:1286

約数の個数: 80

約数和(自身を含む): 3837843648

約数和(自身を除く): 2216478608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 313, 365, 584, 626, 730, 887, 1168, 1252, 1460, 1565, 1774, 2504, 2920, 3130, 3548, 4435, 5008, 5840, 6260, 7096, 8870, 12520, 14192, 17740, 22849, 25040, 35480, 45698, 64751, 70960, 91396, 114245, 129502, 182792, 228490, 259004, 277631, 323755, 365584, 456980, 518008, 555262, 647510, 913960, 1036016, 1110524, 1295020, 1388155, 1827920, 2221048, 2590040, 2776310, 4442096, 5180080, 5552620, 11105240, 20267063, 22210480, 40534126, 81068252, 101335315, 162136504, 202670630, 324273008, 405341260, 810682520, 1621365040]

約数ペア:

[(1, 1621365040), (2, 810682520), (4, 405341260), (5, 324273008), (8, 202670630), (10, 162136504), (16, 101335315), (20, 81068252), (40, 40534126), (73, 22210480), (80, 20267063), (146, 11105240), (292, 5552620), (313, 5180080), (365, 4442096), (584, 2776310), (626, 2590040), (730, 2221048), (887, 1827920), (1168, 1388155), (1252, 1295020), (1460, 1110524), (1565, 1036016), (1774, 913960), (2504, 647510), (2920, 555262), (3130, 518008), (3548, 456980), (4435, 365584), (5008, 323755), (5840, 277631), (6260, 259004), (7096, 228490), (8870, 182792), (12520, 129502), (14192, 114245), (17740, 91396), (22849, 70960), (25040, 64751), (35480, 45698)]