20421180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2909}}^1$

素因数の和:2940

約数の個数: 96

約数和(自身を含む): 68443200

約数和(自身を除く): 48022020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 108, 117, 130, 135, 156, 180, 195, 234, 260, 270, 351, 390, 468, 540, 585, 702, 780, 1170, 1404, 1755, 2340, 2909, 3510, 5818, 7020, 8727, 11636, 14545, 17454, 26181, 29090, 34908, 37817, 43635, 52362, 58180, 75634, 78543, 87270, 104724, 113451, 130905, 151268, 157086, 174540, 189085, 226902, 261810, 314172, 340353, 378170, 392715, 453804, 523620, 567255, 680706, 756340, 785430, 1021059, 1134510, 1361412, 1570860, 1701765, 2042118, 2269020, 3403530, 4084236, 5105295, 6807060, 10210590, 20421180]

約数ペア:

[(1, 20421180), (2, 10210590), (3, 6807060), (4, 5105295), (5, 4084236), (6, 3403530), (9, 2269020), (10, 2042118), (12, 1701765), (13, 1570860), (15, 1361412), (18, 1134510), (20, 1021059), (26, 785430), (27, 756340), (30, 680706), (36, 567255), (39, 523620), (45, 453804), (52, 392715), (54, 378170), (60, 340353), (65, 314172), (78, 261810), (90, 226902), (108, 189085), (117, 174540), (130, 157086), (135, 151268), (156, 130905), (180, 113451), (195, 104724), (234, 87270), (260, 78543), (270, 75634), (351, 58180), (390, 52362), (468, 43635), (540, 37817), (585, 34908), (702, 29090), (780, 26181), (1170, 17454), (1404, 14545), (1755, 11636), (2340, 8727), (2909, 7020), (3510, 5818)]