20314490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:471

約数の個数: 64

約数和(自身を含む): 45391104

約数和(自身を除く): 25076614

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 43, 70, 85, 86, 119, 170, 215, 238, 301, 397, 430, 595, 602, 731, 794, 1190, 1462, 1505, 1985, 2779, 3010, 3655, 3970, 5117, 5558, 6749, 7310, 10234, 13498, 13895, 17071, 25585, 27790, 33745, 34142, 47243, 51170, 67490, 85355, 94486, 119497, 170710, 236215, 238994, 290207, 472430, 580414, 597485, 1194970, 1451035, 2031449, 2902070, 4062898, 10157245, 20314490]

約数ペア:

[(1, 20314490), (2, 10157245), (5, 4062898), (7, 2902070), (10, 2031449), (14, 1451035), (17, 1194970), (34, 597485), (35, 580414), (43, 472430), (70, 290207), (85, 238994), (86, 236215), (119, 170710), (170, 119497), (215, 94486), (238, 85355), (301, 67490), (397, 51170), (430, 47243), (595, 34142), (602, 33745), (731, 27790), (794, 25585), (1190, 17071), (1462, 13895), (1505, 13498), (1985, 10234), (2779, 7310), (3010, 6749), (3655, 5558), (3970, 5117)]