178438120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1973}}^1$

素因数の和:2027

約数の個数: 128

約数和(自身を含む): 511660800

約数和(自身を除く): 333222680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 85, 95, 119, 133, 136, 140, 152, 170, 190, 238, 266, 280, 323, 340, 380, 476, 532, 595, 646, 665, 680, 760, 952, 1064, 1190, 1292, 1330, 1615, 1973, 2261, 2380, 2584, 2660, 3230, 3946, 4522, 4760, 5320, 6460, 7892, 9044, 9865, 11305, 12920, 13811, 15784, 18088, 19730, 22610, 27622, 33541, 37487, 39460, 45220, 55244, 67082, 69055, 74974, 78920, 90440, 110488, 134164, 138110, 149948, 167705, 187435, 234787, 262409, 268328, 276220, 299896, 335410, 374870, 469574, 524818, 552440, 637279, 670820, 749740, 939148, 1049636, 1173935, 1274558, 1312045, 1341640, 1499480, 1878296, 2099272, 2347870, 2549116, 2624090, 3186395, 4460953, 4695740, 5098232, 5248180, 6372790, 8921906, 9391480, 10496360, 12745580, 17843812, 22304765, 25491160, 35687624, 44609530, 89219060, 178438120]

約数ペア:

[(1, 178438120), (2, 89219060), (4, 44609530), (5, 35687624), (7, 25491160), (8, 22304765), (10, 17843812), (14, 12745580), (17, 10496360), (19, 9391480), (20, 8921906), (28, 6372790), (34, 5248180), (35, 5098232), (38, 4695740), (40, 4460953), (56, 3186395), (68, 2624090), (70, 2549116), (76, 2347870), (85, 2099272), (95, 1878296), (119, 1499480), (133, 1341640), (136, 1312045), (140, 1274558), (152, 1173935), (170, 1049636), (190, 939148), (238, 749740), (266, 670820), (280, 637279), (323, 552440), (340, 524818), (380, 469574), (476, 374870), (532, 335410), (595, 299896), (646, 276220), (665, 268328), (680, 262409), (760, 234787), (952, 187435), (1064, 167705), (1190, 149948), (1292, 138110), (1330, 134164), (1615, 110488), (1973, 90440), (2261, 78920), (2380, 74974), (2584, 69055), (2660, 67082), (3230, 55244), (3946, 45220), (4522, 39460), (4760, 37487), (5320, 33541), (6460, 27622), (7892, 22610), (9044, 19730), (9865, 18088), (11305, 15784), (12920, 13811)]