164063920

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1289}}^1$

素因数の和:1382

約数の個数: 80

約数和(自身を含む): 401179680

約数和(自身を除く): 237115760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 43, 74, 80, 86, 148, 172, 185, 215, 296, 344, 370, 430, 592, 688, 740, 860, 1289, 1480, 1591, 1720, 2578, 2960, 3182, 3440, 5156, 6364, 6445, 7955, 10312, 12728, 12890, 15910, 20624, 25456, 25780, 31820, 47693, 51560, 55427, 63640, 95386, 103120, 110854, 127280, 190772, 221708, 238465, 277135, 381544, 443416, 476930, 554270, 763088, 886832, 953860, 1108540, 1907720, 2050799, 2217080, 3815440, 4101598, 4434160, 8203196, 10253995, 16406392, 20507990, 32812784, 41015980, 82031960, 164063920]

約数ペア:

[(1, 164063920), (2, 82031960), (4, 41015980), (5, 32812784), (8, 20507990), (10, 16406392), (16, 10253995), (20, 8203196), (37, 4434160), (40, 4101598), (43, 3815440), (74, 2217080), (80, 2050799), (86, 1907720), (148, 1108540), (172, 953860), (185, 886832), (215, 763088), (296, 554270), (344, 476930), (370, 443416), (430, 381544), (592, 277135), (688, 238465), (740, 221708), (860, 190772), (1289, 127280), (1480, 110854), (1591, 103120), (1720, 95386), (2578, 63640), (2960, 55427), (3182, 51560), (3440, 47693), (5156, 31820), (6364, 25780), (6445, 25456), (7955, 20624), (10312, 15910), (12728, 12890)]