20071600

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^2\times {\mathrm{139}}^1$

素因数の和:195

約数の個数: 90

約数和(自身を含む): 51259740

約数和(自身を除く): 31188140

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 139, 152, 190, 200, 278, 304, 361, 380, 400, 475, 556, 695, 722, 760, 950, 1112, 1390, 1444, 1520, 1805, 1900, 2224, 2641, 2780, 2888, 3475, 3610, 3800, 5282, 5560, 5776, 6950, 7220, 7600, 9025, 10564, 11120, 13205, 13900, 14440, 18050, 21128, 26410, 27800, 28880, 36100, 42256, 50179, 52820, 55600, 66025, 72200, 100358, 105640, 132050, 144400, 200716, 211280, 250895, 264100, 401432, 501790, 528200, 802864, 1003580, 1056400, 1254475, 2007160, 2508950, 4014320, 5017900, 10035800, 20071600]

約数ペア:

[(1, 20071600), (2, 10035800), (4, 5017900), (5, 4014320), (8, 2508950), (10, 2007160), (16, 1254475), (19, 1056400), (20, 1003580), (25, 802864), (38, 528200), (40, 501790), (50, 401432), (76, 264100), (80, 250895), (95, 211280), (100, 200716), (139, 144400), (152, 132050), (190, 105640), (200, 100358), (278, 72200), (304, 66025), (361, 55600), (380, 52820), (400, 50179), (475, 42256), (556, 36100), (695, 28880), (722, 27800), (760, 26410), (950, 21128), (1112, 18050), (1390, 14440), (1444, 13900), (1520, 13205), (1805, 11120), (1900, 10564), (2224, 9025), (2641, 7600), (2780, 7220), (2888, 6950), (3475, 5776), (3610, 5560), (3800, 5282)]