81277140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6673}}^1$

素因数の和:6721

約数の個数: 96

約数和(自身を含む): 269095680

約数和(自身を除く): 187818540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 58, 60, 70, 84, 87, 105, 116, 140, 145, 174, 203, 210, 290, 348, 406, 420, 435, 580, 609, 812, 870, 1015, 1218, 1740, 2030, 2436, 3045, 4060, 6090, 6673, 12180, 13346, 20019, 26692, 33365, 40038, 46711, 66730, 80076, 93422, 100095, 133460, 140133, 186844, 193517, 200190, 233555, 280266, 387034, 400380, 467110, 560532, 580551, 700665, 774068, 934220, 967585, 1161102, 1354619, 1401330, 1935170, 2322204, 2709238, 2802660, 2902755, 3870340, 4063857, 5418476, 5805510, 6773095, 8127714, 11611020, 13546190, 16255428, 20319285, 27092380, 40638570, 81277140]

約数ペア:

[(1, 81277140), (2, 40638570), (3, 27092380), (4, 20319285), (5, 16255428), (6, 13546190), (7, 11611020), (10, 8127714), (12, 6773095), (14, 5805510), (15, 5418476), (20, 4063857), (21, 3870340), (28, 2902755), (29, 2802660), (30, 2709238), (35, 2322204), (42, 1935170), (58, 1401330), (60, 1354619), (70, 1161102), (84, 967585), (87, 934220), (105, 774068), (116, 700665), (140, 580551), (145, 560532), (174, 467110), (203, 400380), (210, 387034), (290, 280266), (348, 233555), (406, 200190), (420, 193517), (435, 186844), (580, 140133), (609, 133460), (812, 100095), (870, 93422), (1015, 80076), (1218, 66730), (1740, 46711), (2030, 40038), (2436, 33365), (3045, 26692), (4060, 20019), (6090, 13346), (6673, 12180)]