84040020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1109}}^1$

素因数の和:1545

約数の個数: 72

約数和(自身を含む): 255757320

約数和(自身を除く): 171717300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 421, 842, 1109, 1263, 1684, 2105, 2218, 2526, 3327, 3789, 4210, 4436, 5052, 5545, 6315, 6654, 7578, 8420, 9981, 11090, 12630, 13308, 15156, 16635, 18945, 19962, 22180, 25260, 33270, 37890, 39924, 49905, 66540, 75780, 99810, 199620, 466889, 933778, 1400667, 1867556, 2334445, 2801334, 4202001, 4668890, 5602668, 7003335, 8404002, 9337780, 14006670, 16808004, 21010005, 28013340, 42020010, 84040020]

約数ペア:

[(1, 84040020), (2, 42020010), (3, 28013340), (4, 21010005), (5, 16808004), (6, 14006670), (9, 9337780), (10, 8404002), (12, 7003335), (15, 5602668), (18, 4668890), (20, 4202001), (30, 2801334), (36, 2334445), (45, 1867556), (60, 1400667), (90, 933778), (180, 466889), (421, 199620), (842, 99810), (1109, 75780), (1263, 66540), (1684, 49905), (2105, 39924), (2218, 37890), (2526, 33270), (3327, 25260), (3789, 22180), (4210, 19962), (4436, 18945), (5052, 16635), (5545, 15156), (6315, 13308), (6654, 12630), (7578, 11090), (8420, 9981)]