20356440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13049}}^1$

素因数の和:13076

約数の個数: 64

約数和(自身を含む): 65772000

約数和(自身を除く): 45415560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13049, 26098, 39147, 52196, 65245, 78294, 104392, 130490, 156588, 169637, 195735, 260980, 313176, 339274, 391470, 508911, 521960, 678548, 782940, 848185, 1017822, 1357096, 1565880, 1696370, 2035644, 2544555, 3392740, 4071288, 5089110, 6785480, 10178220, 20356440]

約数ペア:

[(1, 20356440), (2, 10178220), (3, 6785480), (4, 5089110), (5, 4071288), (6, 3392740), (8, 2544555), (10, 2035644), (12, 1696370), (13, 1565880), (15, 1357096), (20, 1017822), (24, 848185), (26, 782940), (30, 678548), (39, 521960), (40, 508911), (52, 391470), (60, 339274), (65, 313176), (78, 260980), (104, 195735), (120, 169637), (130, 156588), (156, 130490), (195, 104392), (260, 78294), (312, 65245), (390, 52196), (520, 39147), (780, 26098), (1560, 13049)]