320339740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{2381}}^1$

素因数の和:2459

約数の個数: 72

約数和(自身を含む): 794749536

約数和(自身を除く): 474409796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 961, 1085, 1922, 2170, 2381, 3844, 4340, 4762, 4805, 6727, 9524, 9610, 11905, 13454, 16667, 19220, 23810, 26908, 33334, 33635, 47620, 66668, 67270, 73811, 83335, 134540, 147622, 166670, 295244, 333340, 369055, 516677, 738110, 1033354, 1476220, 2066708, 2288141, 2583385, 4576282, 5166770, 9152564, 10333540, 11440705, 16016987, 22881410, 32033974, 45762820, 64067948, 80084935, 160169870, 320339740]

約数ペア:

[(1, 320339740), (2, 160169870), (4, 80084935), (5, 64067948), (7, 45762820), (10, 32033974), (14, 22881410), (20, 16016987), (28, 11440705), (31, 10333540), (35, 9152564), (62, 5166770), (70, 4576282), (124, 2583385), (140, 2288141), (155, 2066708), (217, 1476220), (310, 1033354), (434, 738110), (620, 516677), (868, 369055), (961, 333340), (1085, 295244), (1922, 166670), (2170, 147622), (2381, 134540), (3844, 83335), (4340, 73811), (4762, 67270), (4805, 66668), (6727, 47620), (9524, 33635), (9610, 33334), (11905, 26908), (13454, 23810), (16667, 19220)]