18485560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 44167680

約数和(自身を除く): 25682120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 71, 92, 115, 142, 184, 230, 283, 284, 355, 460, 566, 568, 710, 920, 1132, 1415, 1420, 1633, 2264, 2830, 2840, 3266, 5660, 6509, 6532, 8165, 11320, 13018, 13064, 16330, 20093, 26036, 32545, 32660, 40186, 52072, 65090, 65320, 80372, 100465, 130180, 160744, 200930, 260360, 401860, 462139, 803720, 924278, 1848556, 2310695, 3697112, 4621390, 9242780, 18485560]

約数ペア:

[(1, 18485560), (2, 9242780), (4, 4621390), (5, 3697112), (8, 2310695), (10, 1848556), (20, 924278), (23, 803720), (40, 462139), (46, 401860), (71, 260360), (92, 200930), (115, 160744), (142, 130180), (184, 100465), (230, 80372), (283, 65320), (284, 65090), (355, 52072), (460, 40186), (566, 32660), (568, 32545), (710, 26036), (920, 20093), (1132, 16330), (1415, 13064), (1420, 13018), (1633, 11320), (2264, 8165), (2830, 6532), (2840, 6509), (3266, 5660)]