20202780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{439}}^1$

素因数の和:523

約数の個数: 96

約数和(自身を含む): 62092800

約数和(自身を除く): 41890020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 59, 60, 65, 78, 118, 130, 156, 177, 195, 236, 260, 295, 354, 390, 439, 590, 708, 767, 780, 878, 885, 1180, 1317, 1534, 1756, 1770, 2195, 2301, 2634, 3068, 3540, 3835, 4390, 4602, 5268, 5707, 6585, 7670, 8780, 9204, 11414, 11505, 13170, 15340, 17121, 22828, 23010, 25901, 26340, 28535, 34242, 46020, 51802, 57070, 68484, 77703, 85605, 103604, 114140, 129505, 155406, 171210, 259010, 310812, 336713, 342420, 388515, 518020, 673426, 777030, 1010139, 1346852, 1554060, 1683565, 2020278, 3367130, 4040556, 5050695, 6734260, 10101390, 20202780]

約数ペア:

[(1, 20202780), (2, 10101390), (3, 6734260), (4, 5050695), (5, 4040556), (6, 3367130), (10, 2020278), (12, 1683565), (13, 1554060), (15, 1346852), (20, 1010139), (26, 777030), (30, 673426), (39, 518020), (52, 388515), (59, 342420), (60, 336713), (65, 310812), (78, 259010), (118, 171210), (130, 155406), (156, 129505), (177, 114140), (195, 103604), (236, 85605), (260, 77703), (295, 68484), (354, 57070), (390, 51802), (439, 46020), (590, 34242), (708, 28535), (767, 26340), (780, 25901), (878, 23010), (885, 22828), (1180, 17121), (1317, 15340), (1534, 13170), (1756, 11505), (1770, 11414), (2195, 9204), (2301, 8780), (2634, 7670), (3068, 6585), (3540, 5707), (3835, 5268), (4390, 4602)]