19879020

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{1753}}^1$

素因数の和:1781

約数の個数: 120

約数和(自身を含む): 71310624

約数和(自身を除く): 51431604

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1753, 1890, 2268, 2835, 3506, 3780, 5259, 5670, 7012, 8765, 10518, 11340, 12271, 15777, 17530, 21036, 24542, 26295, 31554, 35060, 36813, 47331, 49084, 52590, 61355, 63108, 73626, 78885, 94662, 105180, 110439, 122710, 141993, 147252, 157770, 184065, 189324, 220878, 236655, 245420, 283986, 315540, 331317, 368130, 441756, 473310, 552195, 567972, 662634, 709965, 736260, 946620, 993951, 1104390, 1325268, 1419930, 1656585, 1987902, 2208780, 2839860, 3313170, 3975804, 4969755, 6626340, 9939510, 19879020]

約数ペア:

[(1, 19879020), (2, 9939510), (3, 6626340), (4, 4969755), (5, 3975804), (6, 3313170), (7, 2839860), (9, 2208780), (10, 1987902), (12, 1656585), (14, 1419930), (15, 1325268), (18, 1104390), (20, 993951), (21, 946620), (27, 736260), (28, 709965), (30, 662634), (35, 567972), (36, 552195), (42, 473310), (45, 441756), (54, 368130), (60, 331317), (63, 315540), (70, 283986), (81, 245420), (84, 236655), (90, 220878), (105, 189324), (108, 184065), (126, 157770), (135, 147252), (140, 141993), (162, 122710), (180, 110439), (189, 105180), (210, 94662), (252, 78885), (270, 73626), (315, 63108), (324, 61355), (378, 52590), (405, 49084), (420, 47331), (540, 36813), (567, 35060), (630, 31554), (756, 26295), (810, 24542), (945, 21036), (1134, 17530), (1260, 15777), (1620, 12271), (1753, 11340), (1890, 10518), (2268, 8765), (2835, 7012), (3506, 5670), (3780, 5259)]