68164210

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:283

約数の個数: 64

約数和(自身を含む): 136080000

約数和(自身を除く): 67915790

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 89, 95, 139, 145, 178, 190, 278, 290, 445, 551, 695, 890, 1102, 1390, 1691, 2581, 2641, 2755, 3382, 4031, 5162, 5282, 5510, 8062, 8455, 12371, 12905, 13205, 16910, 20155, 24742, 25810, 26410, 40310, 49039, 61855, 76589, 98078, 123710, 153178, 235049, 245195, 358759, 382945, 470098, 490390, 717518, 765890, 1175245, 1793795, 2350490, 3587590, 6816421, 13632842, 34082105, 68164210]

約数ペア:

[(1, 68164210), (2, 34082105), (5, 13632842), (10, 6816421), (19, 3587590), (29, 2350490), (38, 1793795), (58, 1175245), (89, 765890), (95, 717518), (139, 490390), (145, 470098), (178, 382945), (190, 358759), (278, 245195), (290, 235049), (445, 153178), (551, 123710), (695, 98078), (890, 76589), (1102, 61855), (1390, 49039), (1691, 40310), (2581, 26410), (2641, 25810), (2755, 24742), (3382, 20155), (4031, 16910), (5162, 13205), (5282, 12905), (5510, 12371), (8062, 8455)]