28010220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3923}}^1$

素因数の和:3959

約数の個数: 96

約数和(自身を含む): 94929408

約数和(自身を除く): 66919188

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 340, 357, 420, 476, 510, 595, 714, 1020, 1190, 1428, 1785, 2380, 3570, 3923, 7140, 7846, 11769, 15692, 19615, 23538, 27461, 39230, 47076, 54922, 58845, 66691, 78460, 82383, 109844, 117690, 133382, 137305, 164766, 200073, 235380, 266764, 274610, 329532, 333455, 400146, 411915, 466837, 549220, 666910, 800292, 823830, 933674, 1000365, 1333820, 1400511, 1647660, 1867348, 2000730, 2334185, 2801022, 4001460, 4668370, 5602044, 7002555, 9336740, 14005110, 28010220]

約数ペア:

[(1, 28010220), (2, 14005110), (3, 9336740), (4, 7002555), (5, 5602044), (6, 4668370), (7, 4001460), (10, 2801022), (12, 2334185), (14, 2000730), (15, 1867348), (17, 1647660), (20, 1400511), (21, 1333820), (28, 1000365), (30, 933674), (34, 823830), (35, 800292), (42, 666910), (51, 549220), (60, 466837), (68, 411915), (70, 400146), (84, 333455), (85, 329532), (102, 274610), (105, 266764), (119, 235380), (140, 200073), (170, 164766), (204, 137305), (210, 133382), (238, 117690), (255, 109844), (340, 82383), (357, 78460), (420, 66691), (476, 58845), (510, 54922), (595, 47076), (714, 39230), (1020, 27461), (1190, 23538), (1428, 19615), (1785, 15692), (2380, 11769), (3570, 7846), (3923, 7140)]