81684735

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 151303680

約数和(自身を除く): 69618945

約数列:

[1, 3, 5, 11, 15, 29, 33, 43, 55, 87, 129, 145, 165, 215, 319, 397, 435, 473, 645, 957, 1191, 1247, 1419, 1595, 1985, 2365, 3741, 4367, 4785, 5955, 6235, 7095, 11513, 13101, 13717, 17071, 18705, 21835, 34539, 41151, 51213, 57565, 65505, 68585, 85355, 126643, 172695, 187781, 205755, 256065, 379929, 495059, 563343, 633215, 938905, 1485177, 1899645, 2475295, 2816715, 5445649, 7425885, 16336947, 27228245, 81684735]

約数ペア:

[(1, 81684735), (3, 27228245), (5, 16336947), (11, 7425885), (15, 5445649), (29, 2816715), (33, 2475295), (43, 1899645), (55, 1485177), (87, 938905), (129, 633215), (145, 563343), (165, 495059), (215, 379929), (319, 256065), (397, 205755), (435, 187781), (473, 172695), (645, 126643), (957, 85355), (1191, 68585), (1247, 65505), (1419, 57565), (1595, 51213), (1985, 41151), (2365, 34539), (3741, 21835), (4367, 18705), (4785, 17071), (5955, 13717), (6235, 13101), (7095, 11513)]