28936760

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:548

約数の個数: 64

約数和(自身を含む): 69050880

約数和(自身を除く): 40114120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 71, 92, 115, 142, 184, 230, 284, 355, 443, 460, 568, 710, 886, 920, 1420, 1633, 1772, 2215, 2840, 3266, 3544, 4430, 6532, 8165, 8860, 10189, 13064, 16330, 17720, 20378, 31453, 32660, 40756, 50945, 62906, 65320, 81512, 101890, 125812, 157265, 203780, 251624, 314530, 407560, 629060, 723419, 1258120, 1446838, 2893676, 3617095, 5787352, 7234190, 14468380, 28936760]

約数ペア:

[(1, 28936760), (2, 14468380), (4, 7234190), (5, 5787352), (8, 3617095), (10, 2893676), (20, 1446838), (23, 1258120), (40, 723419), (46, 629060), (71, 407560), (92, 314530), (115, 251624), (142, 203780), (184, 157265), (230, 125812), (284, 101890), (355, 81512), (443, 65320), (460, 62906), (568, 50945), (710, 40756), (886, 32660), (920, 31453), (1420, 20378), (1633, 17720), (1772, 16330), (2215, 13064), (2840, 10189), (3266, 8860), (3544, 8165), (4430, 6532)]