238980880

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{431}}^1$

素因数の和:712

約数の個数: 80

約数和(自身を含む): 578534400

約数和(自身を除く): 339553520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 239, 290, 431, 464, 478, 580, 862, 956, 1160, 1195, 1724, 1912, 2155, 2320, 2390, 3448, 3824, 4310, 4780, 6896, 6931, 8620, 9560, 12499, 13862, 17240, 19120, 24998, 27724, 34480, 34655, 49996, 55448, 62495, 69310, 99992, 103009, 110896, 124990, 138620, 199984, 206018, 249980, 277240, 412036, 499960, 515045, 554480, 824072, 999920, 1030090, 1648144, 2060180, 2987261, 4120360, 5974522, 8240720, 11949044, 14936305, 23898088, 29872610, 47796176, 59745220, 119490440, 238980880]

約数ペア:

[(1, 238980880), (2, 119490440), (4, 59745220), (5, 47796176), (8, 29872610), (10, 23898088), (16, 14936305), (20, 11949044), (29, 8240720), (40, 5974522), (58, 4120360), (80, 2987261), (116, 2060180), (145, 1648144), (232, 1030090), (239, 999920), (290, 824072), (431, 554480), (464, 515045), (478, 499960), (580, 412036), (862, 277240), (956, 249980), (1160, 206018), (1195, 199984), (1724, 138620), (1912, 124990), (2155, 110896), (2320, 103009), (2390, 99992), (3448, 69310), (3824, 62495), (4310, 55448), (4780, 49996), (6896, 34655), (6931, 34480), (8620, 27724), (9560, 24998), (12499, 19120), (13862, 17240)]