20415540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 60230016

約数和(自身を除く): 39814476

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 43, 60, 82, 86, 123, 129, 164, 172, 193, 205, 215, 246, 258, 386, 410, 430, 492, 516, 579, 615, 645, 772, 820, 860, 965, 1158, 1230, 1290, 1763, 1930, 2316, 2460, 2580, 2895, 3526, 3860, 5289, 5790, 7052, 7913, 8299, 8815, 10578, 11580, 15826, 16598, 17630, 21156, 23739, 24897, 26445, 31652, 33196, 35260, 39565, 41495, 47478, 49794, 52890, 79130, 82990, 94956, 99588, 105780, 118695, 124485, 158260, 165980, 237390, 248970, 340259, 474780, 497940, 680518, 1020777, 1361036, 1701295, 2041554, 3402590, 4083108, 5103885, 6805180, 10207770, 20415540]

約数ペア:

[(1, 20415540), (2, 10207770), (3, 6805180), (4, 5103885), (5, 4083108), (6, 3402590), (10, 2041554), (12, 1701295), (15, 1361036), (20, 1020777), (30, 680518), (41, 497940), (43, 474780), (60, 340259), (82, 248970), (86, 237390), (123, 165980), (129, 158260), (164, 124485), (172, 118695), (193, 105780), (205, 99588), (215, 94956), (246, 82990), (258, 79130), (386, 52890), (410, 49794), (430, 47478), (492, 41495), (516, 39565), (579, 35260), (615, 33196), (645, 31652), (772, 26445), (820, 24897), (860, 23739), (965, 21156), (1158, 17630), (1230, 16598), (1290, 15826), (1763, 11580), (1930, 10578), (2316, 8815), (2460, 8299), (2580, 7913), (2895, 7052), (3526, 5790), (3860, 5289)]