261280

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:109

約数の個数: 48

約数和(自身を含む): 653184

約数和(自身を除く): 391904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 71, 80, 92, 115, 142, 160, 184, 230, 284, 355, 368, 460, 568, 710, 736, 920, 1136, 1420, 1633, 1840, 2272, 2840, 3266, 3680, 5680, 6532, 8165, 11360, 13064, 16330, 26128, 32660, 52256, 65320, 130640, 261280]

約数ペア:

[(1, 261280), (2, 130640), (4, 65320), (5, 52256), (8, 32660), (10, 26128), (16, 16330), (20, 13064), (23, 11360), (32, 8165), (40, 6532), (46, 5680), (71, 3680), (80, 3266), (92, 2840), (115, 2272), (142, 1840), (160, 1633), (184, 1420), (230, 1136), (284, 920), (355, 736), (368, 710), (460, 568)]