20128486575

素因数分解:

$3^1\times 5^2\times {\mathrm{431}}^1\times {\mathrm{541}}^1\times {\mathrm{1151}}^1$

素因数の和:2136

約数の個数: 48

約数和(自身を含む): 33447002112

約数和(自身を除く): 13318515537

約数列:

[1, 3, 5, 15, 25, 75, 431, 541, 1151, 1293, 1623, 2155, 2705, 3453, 5755, 6465, 8115, 10775, 13525, 17265, 28775, 32325, 40575, 86325, 233171, 496081, 622691, 699513, 1165855, 1488243, 1868073, 2480405, 3113455, 3497565, 5829275, 7441215, 9340365, 12402025, 15567275, 17487825, 37206075, 46701825, 268379821, 805139463, 1341899105, 4025697315, 6709495525, 20128486575]

約数ペア:

[(1, 20128486575), (3, 6709495525), (5, 4025697315), (15, 1341899105), (25, 805139463), (75, 268379821), (431, 46701825), (541, 37206075), (1151, 17487825), (1293, 15567275), (1623, 12402025), (2155, 9340365), (2705, 7441215), (3453, 5829275), (5755, 3497565), (6465, 3113455), (8115, 2480405), (10775, 1868073), (13525, 1488243), (17265, 1165855), (28775, 699513), (32325, 622691), (40575, 496081), (86325, 233171)]