2019982020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{18287}}^1$

素因数の和:18569

約数の個数: 96

約数和(自身を含む): 6488875008

約数和(自身を除く): 4468892988

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 263, 420, 526, 789, 1052, 1315, 1578, 1841, 2630, 3156, 3682, 3945, 5260, 5523, 7364, 7890, 9205, 11046, 15780, 18287, 18410, 22092, 27615, 36574, 36820, 54861, 55230, 73148, 91435, 109722, 110460, 128009, 182870, 219444, 256018, 274305, 365740, 384027, 512036, 548610, 640045, 768054, 1097220, 1280090, 1536108, 1920135, 2560180, 3840270, 4809481, 7680540, 9618962, 14428443, 19237924, 24047405, 28856886, 33666367, 48094810, 57713772, 67332734, 72142215, 96189620, 100999101, 134665468, 144284430, 168331835, 201998202, 288568860, 336663670, 403996404, 504995505, 673327340, 1009991010, 2019982020]

約数ペア:

[(1, 2019982020), (2, 1009991010), (3, 673327340), (4, 504995505), (5, 403996404), (6, 336663670), (7, 288568860), (10, 201998202), (12, 168331835), (14, 144284430), (15, 134665468), (20, 100999101), (21, 96189620), (28, 72142215), (30, 67332734), (35, 57713772), (42, 48094810), (60, 33666367), (70, 28856886), (84, 24047405), (105, 19237924), (140, 14428443), (210, 9618962), (263, 7680540), (420, 4809481), (526, 3840270), (789, 2560180), (1052, 1920135), (1315, 1536108), (1578, 1280090), (1841, 1097220), (2630, 768054), (3156, 640045), (3682, 548610), (3945, 512036), (5260, 384027), (5523, 365740), (7364, 274305), (7890, 256018), (9205, 219444), (11046, 182870), (15780, 128009), (18287, 110460), (18410, 109722), (22092, 91435), (27615, 73148), (36574, 55230), (36820, 54861)]