20165660840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{362431}}^1$

素因数の和:362562

約数の個数: 64

約数和(自身を含む): 49319746560

約数和(自身を除く): 29154085720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 107, 130, 214, 260, 428, 520, 535, 856, 1070, 1391, 2140, 2782, 4280, 5564, 6955, 11128, 13910, 27820, 55640, 362431, 724862, 1449724, 1812155, 2899448, 3624310, 4711603, 7248620, 9423206, 14497240, 18846412, 23558015, 37692824, 38780117, 47116030, 77560234, 94232060, 155120468, 188464120, 193900585, 310240936, 387801170, 504141521, 775602340, 1008283042, 1551204680, 2016566084, 2520707605, 4033132168, 5041415210, 10082830420, 20165660840]

約数ペア:

[(1, 20165660840), (2, 10082830420), (4, 5041415210), (5, 4033132168), (8, 2520707605), (10, 2016566084), (13, 1551204680), (20, 1008283042), (26, 775602340), (40, 504141521), (52, 387801170), (65, 310240936), (104, 193900585), (107, 188464120), (130, 155120468), (214, 94232060), (260, 77560234), (428, 47116030), (520, 38780117), (535, 37692824), (856, 23558015), (1070, 18846412), (1391, 14497240), (2140, 9423206), (2782, 7248620), (4280, 4711603), (5564, 3624310), (6955, 2899448), (11128, 1812155), (13910, 1449724), (27820, 724862), (55640, 362431)]