21995760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2477}}^1$

素因数の和:2530

約数の個数: 80

約数和(自身を含む): 70058016

約数和(自身を除く): 48062256

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 48, 60, 74, 80, 111, 120, 148, 185, 222, 240, 296, 370, 444, 555, 592, 740, 888, 1110, 1480, 1776, 2220, 2477, 2960, 4440, 4954, 7431, 8880, 9908, 12385, 14862, 19816, 24770, 29724, 37155, 39632, 49540, 59448, 74310, 91649, 99080, 118896, 148620, 183298, 198160, 274947, 297240, 366596, 458245, 549894, 594480, 733192, 916490, 1099788, 1374735, 1466384, 1832980, 2199576, 2749470, 3665960, 4399152, 5498940, 7331920, 10997880, 21995760]

約数ペア:

[(1, 21995760), (2, 10997880), (3, 7331920), (4, 5498940), (5, 4399152), (6, 3665960), (8, 2749470), (10, 2199576), (12, 1832980), (15, 1466384), (16, 1374735), (20, 1099788), (24, 916490), (30, 733192), (37, 594480), (40, 549894), (48, 458245), (60, 366596), (74, 297240), (80, 274947), (111, 198160), (120, 183298), (148, 148620), (185, 118896), (222, 99080), (240, 91649), (296, 74310), (370, 59448), (444, 49540), (555, 39632), (592, 37155), (740, 29724), (888, 24770), (1110, 19816), (1480, 14862), (1776, 12385), (2220, 9908), (2477, 8880), (2960, 7431), (4440, 4954)]