61620760

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{449}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 143856000

約数和(自身を除く): 82235240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 73, 94, 146, 188, 235, 292, 365, 376, 449, 470, 584, 730, 898, 940, 1460, 1796, 1880, 2245, 2920, 3431, 3592, 4490, 6862, 8980, 13724, 17155, 17960, 21103, 27448, 32777, 34310, 42206, 65554, 68620, 84412, 105515, 131108, 137240, 163885, 168824, 211030, 262216, 327770, 422060, 655540, 844120, 1311080, 1540519, 3081038, 6162076, 7702595, 12324152, 15405190, 30810380, 61620760]

約数ペア:

[(1, 61620760), (2, 30810380), (4, 15405190), (5, 12324152), (8, 7702595), (10, 6162076), (20, 3081038), (40, 1540519), (47, 1311080), (73, 844120), (94, 655540), (146, 422060), (188, 327770), (235, 262216), (292, 211030), (365, 168824), (376, 163885), (449, 137240), (470, 131108), (584, 105515), (730, 84412), (898, 68620), (940, 65554), (1460, 42206), (1796, 34310), (1880, 32777), (2245, 27448), (2920, 21103), (3431, 17960), (3592, 17155), (4490, 13724), (6862, 8980)]