20377785

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{563}}^1$

素因数の和:717

約数の個数: 32

約数和(自身を含む): 34652160

約数和(自身を除く): 14274375

約数列:

[1, 3, 5, 15, 19, 57, 95, 127, 285, 381, 563, 635, 1689, 1905, 2413, 2815, 7239, 8445, 10697, 12065, 32091, 36195, 53485, 71501, 160455, 214503, 357505, 1072515, 1358519, 4075557, 6792595, 20377785]

約数ペア:

[(1, 20377785), (3, 6792595), (5, 4075557), (15, 1358519), (19, 1072515), (57, 357505), (95, 214503), (127, 160455), (285, 71501), (381, 53485), (563, 36195), (635, 32091), (1689, 12065), (1905, 10697), (2413, 8445), (2815, 7239)]