20006693840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1721}}^1\times {\mathrm{20759}}^1$

素因数の和:22500

約数の個数: 80

約数和(自身を含む): 53194095360

約数和(自身を除く): 33187401520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1721, 3442, 6884, 8605, 12047, 13768, 17210, 20759, 24094, 27536, 34420, 41518, 48188, 60235, 68840, 83036, 96376, 103795, 120470, 137680, 145313, 166072, 192752, 207590, 240940, 290626, 332144, 415180, 481880, 581252, 726565, 830360, 963760, 1162504, 1453130, 1660720, 2325008, 2906260, 5812520, 11625040, 35726239, 71452478, 142904956, 178631195, 250083673, 285809912, 357262390, 500167346, 571619824, 714524780, 1000334692, 1250418365, 1429049560, 2000669384, 2500836730, 2858099120, 4001338768, 5001673460, 10003346920, 20006693840]

約数ペア:

[(1, 20006693840), (2, 10003346920), (4, 5001673460), (5, 4001338768), (7, 2858099120), (8, 2500836730), (10, 2000669384), (14, 1429049560), (16, 1250418365), (20, 1000334692), (28, 714524780), (35, 571619824), (40, 500167346), (56, 357262390), (70, 285809912), (80, 250083673), (112, 178631195), (140, 142904956), (280, 71452478), (560, 35726239), (1721, 11625040), (3442, 5812520), (6884, 2906260), (8605, 2325008), (12047, 1660720), (13768, 1453130), (17210, 1162504), (20759, 963760), (24094, 830360), (27536, 726565), (34420, 581252), (41518, 481880), (48188, 415180), (60235, 332144), (68840, 290626), (83036, 240940), (96376, 207590), (103795, 192752), (120470, 166072), (137680, 145313)]