20681197096

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1\times {\mathrm{19927}}^1$

素因数の和:20414

約数の個数: 64

約数和(自身を含む): 45454970880

約数和(自身を除く): 24773773784

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 431, 602, 862, 1204, 1724, 2408, 3017, 3448, 6034, 12068, 18533, 19927, 24136, 37066, 39854, 74132, 79708, 129731, 139489, 148264, 159416, 259462, 278978, 518924, 557956, 856861, 1037848, 1115912, 1713722, 3427444, 5998027, 6854888, 8588537, 11996054, 17177074, 23992108, 34354148, 47984216, 60119759, 68708296, 120239518, 240479036, 369307091, 480958072, 738614182, 1477228364, 2585149637, 2954456728, 5170299274, 10340598548, 20681197096]

約数ペア:

[(1, 20681197096), (2, 10340598548), (4, 5170299274), (7, 2954456728), (8, 2585149637), (14, 1477228364), (28, 738614182), (43, 480958072), (56, 369307091), (86, 240479036), (172, 120239518), (301, 68708296), (344, 60119759), (431, 47984216), (602, 34354148), (862, 23992108), (1204, 17177074), (1724, 11996054), (2408, 8588537), (3017, 6854888), (3448, 5998027), (6034, 3427444), (12068, 1713722), (18533, 1115912), (19927, 1037848), (24136, 856861), (37066, 557956), (39854, 518924), (74132, 278978), (79708, 259462), (129731, 159416), (139489, 148264)]