123508760

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1$

素因数の和:516

約数の個数: 64

約数和(自身を含む): 284627520

約数和(自身を除く): 161118760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 157, 277, 284, 314, 355, 554, 568, 628, 710, 785, 1108, 1256, 1385, 1420, 1570, 2216, 2770, 2840, 3140, 5540, 6280, 11080, 11147, 19667, 22294, 39334, 43489, 44588, 55735, 78668, 86978, 89176, 98335, 111470, 157336, 173956, 196670, 217445, 222940, 347912, 393340, 434890, 445880, 786680, 869780, 1739560, 3087719, 6175438, 12350876, 15438595, 24701752, 30877190, 61754380, 123508760]

約数ペア:

[(1, 123508760), (2, 61754380), (4, 30877190), (5, 24701752), (8, 15438595), (10, 12350876), (20, 6175438), (40, 3087719), (71, 1739560), (142, 869780), (157, 786680), (277, 445880), (284, 434890), (314, 393340), (355, 347912), (554, 222940), (568, 217445), (628, 196670), (710, 173956), (785, 157336), (1108, 111470), (1256, 98335), (1385, 89176), (1420, 86978), (1570, 78668), (2216, 55735), (2770, 44588), (2840, 43489), (3140, 39334), (5540, 22294), (6280, 19667), (11080, 11147)]