84202020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3931}}^1$

素因数の和:3970

約数の個数: 144

約数和(自身を含む): 309149568

約数和(自身を除く): 224947548

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 2142, 2380, 3060, 3570, 3931, 4284, 5355, 7140, 7862, 10710, 11793, 15724, 19655, 21420, 23586, 27517, 35379, 39310, 47172, 55034, 58965, 66827, 70758, 78620, 82551, 110068, 117930, 133654, 137585, 141516, 165102, 176895, 200481, 235860, 247653, 267308, 275170, 330204, 334135, 353790, 400962, 412755, 467789, 495306, 550340, 601443, 668270, 707580, 801924, 825510, 935578, 990612, 1002405, 1202886, 1238265, 1336540, 1403367, 1651020, 1871156, 2004810, 2338945, 2405772, 2476530, 2806734, 3007215, 4009620, 4210101, 4677890, 4953060, 5613468, 6014430, 7016835, 8420202, 9355780, 12028860, 14033670, 16840404, 21050505, 28067340, 42101010, 84202020]

約数ペア:

[(1, 84202020), (2, 42101010), (3, 28067340), (4, 21050505), (5, 16840404), (6, 14033670), (7, 12028860), (9, 9355780), (10, 8420202), (12, 7016835), (14, 6014430), (15, 5613468), (17, 4953060), (18, 4677890), (20, 4210101), (21, 4009620), (28, 3007215), (30, 2806734), (34, 2476530), (35, 2405772), (36, 2338945), (42, 2004810), (45, 1871156), (51, 1651020), (60, 1403367), (63, 1336540), (68, 1238265), (70, 1202886), (84, 1002405), (85, 990612), (90, 935578), (102, 825510), (105, 801924), (119, 707580), (126, 668270), (140, 601443), (153, 550340), (170, 495306), (180, 467789), (204, 412755), (210, 400962), (238, 353790), (252, 334135), (255, 330204), (306, 275170), (315, 267308), (340, 247653), (357, 235860), (420, 200481), (476, 176895), (510, 165102), (595, 141516), (612, 137585), (630, 133654), (714, 117930), (765, 110068), (1020, 82551), (1071, 78620), (1190, 70758), (1260, 66827), (1428, 58965), (1530, 55034), (1785, 47172), (2142, 39310), (2380, 35379), (3060, 27517), (3570, 23586), (3931, 21420), (4284, 19655), (5355, 15724), (7140, 11793), (7862, 10710)]