64720760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1753}}^1$

素因数の和:1848

約数の個数: 64

約数和(自身を含む): 159122880

約数和(自身を除く): 94402120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 260, 284, 355, 520, 568, 710, 923, 1420, 1753, 1846, 2840, 3506, 3692, 4615, 7012, 7384, 8765, 9230, 14024, 17530, 18460, 22789, 35060, 36920, 45578, 70120, 91156, 113945, 124463, 182312, 227890, 248926, 455780, 497852, 622315, 911560, 995704, 1244630, 1618019, 2489260, 3236038, 4978520, 6472076, 8090095, 12944152, 16180190, 32360380, 64720760]

約数ペア:

[(1, 64720760), (2, 32360380), (4, 16180190), (5, 12944152), (8, 8090095), (10, 6472076), (13, 4978520), (20, 3236038), (26, 2489260), (40, 1618019), (52, 1244630), (65, 995704), (71, 911560), (104, 622315), (130, 497852), (142, 455780), (260, 248926), (284, 227890), (355, 182312), (520, 124463), (568, 113945), (710, 91156), (923, 70120), (1420, 45578), (1753, 36920), (1846, 35060), (2840, 22789), (3506, 18460), (3692, 17530), (4615, 14024), (7012, 9230), (7384, 8765)]