178996140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{11981}}^1$

素因数の和:12079

約数の個数: 72

約数和(自身を含む): 549542448

約数和(自身を除く): 370546308

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 166, 180, 249, 332, 415, 498, 747, 830, 996, 1245, 1494, 1660, 2490, 2988, 3735, 4980, 7470, 11981, 14940, 23962, 35943, 47924, 59905, 71886, 107829, 119810, 143772, 179715, 215658, 239620, 359430, 431316, 539145, 718860, 994423, 1078290, 1988846, 2156580, 2983269, 3977692, 4972115, 5966538, 8949807, 9944230, 11933076, 14916345, 17899614, 19888460, 29832690, 35799228, 44749035, 59665380, 89498070, 178996140]

約数ペア:

[(1, 178996140), (2, 89498070), (3, 59665380), (4, 44749035), (5, 35799228), (6, 29832690), (9, 19888460), (10, 17899614), (12, 14916345), (15, 11933076), (18, 9944230), (20, 8949807), (30, 5966538), (36, 4972115), (45, 3977692), (60, 2983269), (83, 2156580), (90, 1988846), (166, 1078290), (180, 994423), (249, 718860), (332, 539145), (415, 431316), (498, 359430), (747, 239620), (830, 215658), (996, 179715), (1245, 143772), (1494, 119810), (1660, 107829), (2490, 71886), (2988, 59905), (3735, 47924), (4980, 35943), (7470, 23962), (11981, 14940)]