90681680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59659}}^1$

素因数の和:59691

約数の個数: 40

約数和(自身を含む): 221935200

約数和(自身を除く): 131253520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 59659, 119318, 238636, 298295, 477272, 596590, 954544, 1133521, 1193180, 2267042, 2386360, 4534084, 4772720, 5667605, 9068168, 11335210, 18136336, 22670420, 45340840, 90681680]

約数ペア:

[(1, 90681680), (2, 45340840), (4, 22670420), (5, 18136336), (8, 11335210), (10, 9068168), (16, 5667605), (19, 4772720), (20, 4534084), (38, 2386360), (40, 2267042), (76, 1193180), (80, 1133521), (95, 954544), (152, 596590), (190, 477272), (304, 298295), (380, 238636), (760, 119318), (1520, 59659)]