68951820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:572

約数の個数: 144

約数和(自身を含む): 229824000

約数和(自身を除く): 160872180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 49, 60, 70, 84, 94, 98, 105, 140, 141, 147, 188, 196, 210, 235, 245, 282, 294, 329, 420, 470, 490, 499, 564, 588, 658, 705, 735, 940, 980, 987, 998, 1316, 1410, 1470, 1497, 1645, 1974, 1996, 2303, 2495, 2820, 2940, 2994, 3290, 3493, 3948, 4606, 4935, 4990, 5988, 6580, 6909, 6986, 7485, 9212, 9870, 9980, 10479, 11515, 13818, 13972, 14970, 17465, 19740, 20958, 23030, 23453, 24451, 27636, 29940, 34545, 34930, 41916, 46060, 46906, 48902, 52395, 69090, 69860, 70359, 73353, 93812, 97804, 104790, 117265, 122255, 138180, 140718, 146706, 164171, 209580, 234530, 244510, 281436, 293412, 328342, 351795, 366765, 469060, 489020, 492513, 656684, 703590, 733530, 820855, 985026, 1149197, 1407180, 1467060, 1641710, 1970052, 2298394, 2462565, 3283420, 3447591, 4596788, 4925130, 5745985, 6895182, 9850260, 11491970, 13790364, 17237955, 22983940, 34475910, 68951820]

約数ペア:

[(1, 68951820), (2, 34475910), (3, 22983940), (4, 17237955), (5, 13790364), (6, 11491970), (7, 9850260), (10, 6895182), (12, 5745985), (14, 4925130), (15, 4596788), (20, 3447591), (21, 3283420), (28, 2462565), (30, 2298394), (35, 1970052), (42, 1641710), (47, 1467060), (49, 1407180), (60, 1149197), (70, 985026), (84, 820855), (94, 733530), (98, 703590), (105, 656684), (140, 492513), (141, 489020), (147, 469060), (188, 366765), (196, 351795), (210, 328342), (235, 293412), (245, 281436), (282, 244510), (294, 234530), (329, 209580), (420, 164171), (470, 146706), (490, 140718), (499, 138180), (564, 122255), (588, 117265), (658, 104790), (705, 97804), (735, 93812), (940, 73353), (980, 70359), (987, 69860), (998, 69090), (1316, 52395), (1410, 48902), (1470, 46906), (1497, 46060), (1645, 41916), (1974, 34930), (1996, 34545), (2303, 29940), (2495, 27636), (2820, 24451), (2940, 23453), (2994, 23030), (3290, 20958), (3493, 19740), (3948, 17465), (4606, 14970), (4935, 13972), (4990, 13818), (5988, 11515), (6580, 10479), (6909, 9980), (6986, 9870), (7485, 9212)]