23920520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{293}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 58529520

約数和(自身を除く): 34609000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 157, 260, 293, 314, 520, 586, 628, 785, 1172, 1256, 1465, 1570, 2041, 2344, 2930, 3140, 3809, 4082, 5860, 6280, 7618, 8164, 10205, 11720, 15236, 16328, 19045, 20410, 30472, 38090, 40820, 46001, 76180, 81640, 92002, 152360, 184004, 230005, 368008, 460010, 598013, 920020, 1196026, 1840040, 2392052, 2990065, 4784104, 5980130, 11960260, 23920520]

約数ペア:

[(1, 23920520), (2, 11960260), (4, 5980130), (5, 4784104), (8, 2990065), (10, 2392052), (13, 1840040), (20, 1196026), (26, 920020), (40, 598013), (52, 460010), (65, 368008), (104, 230005), (130, 184004), (157, 152360), (260, 92002), (293, 81640), (314, 76180), (520, 46001), (586, 40820), (628, 38090), (785, 30472), (1172, 20410), (1256, 19045), (1465, 16328), (1570, 15236), (2041, 11720), (2344, 10205), (2930, 8164), (3140, 7618), (3809, 6280), (4082, 5860)]