68684720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{313}}^1$

素因数の和:550

約数の個数: 80

約数和(自身を含む): 173343072

約数和(自身を除く): 104658352

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 211, 260, 313, 422, 520, 626, 844, 1040, 1055, 1252, 1565, 1688, 2110, 2504, 2743, 3130, 3376, 4069, 4220, 5008, 5486, 6260, 8138, 8440, 10972, 12520, 13715, 16276, 16880, 20345, 21944, 25040, 27430, 32552, 40690, 43888, 54860, 65104, 66043, 81380, 109720, 132086, 162760, 219440, 264172, 325520, 330215, 528344, 660430, 858559, 1056688, 1320860, 1717118, 2641720, 3434236, 4292795, 5283440, 6868472, 8585590, 13736944, 17171180, 34342360, 68684720]

約数ペア:

[(1, 68684720), (2, 34342360), (4, 17171180), (5, 13736944), (8, 8585590), (10, 6868472), (13, 5283440), (16, 4292795), (20, 3434236), (26, 2641720), (40, 1717118), (52, 1320860), (65, 1056688), (80, 858559), (104, 660430), (130, 528344), (208, 330215), (211, 325520), (260, 264172), (313, 219440), (422, 162760), (520, 132086), (626, 109720), (844, 81380), (1040, 66043), (1055, 65104), (1252, 54860), (1565, 43888), (1688, 40690), (2110, 32552), (2504, 27430), (2743, 25040), (3130, 21944), (3376, 20345), (4069, 16880), (4220, 16276), (5008, 13715), (5486, 12520), (6260, 10972), (8138, 8440)]