15388940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{383}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 38610432

約数和(自身を除く): 23221492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 383, 410, 490, 574, 766, 820, 980, 1148, 1435, 1532, 1915, 2009, 2681, 2870, 3830, 4018, 5362, 5740, 7660, 8036, 10045, 10724, 13405, 15703, 18767, 20090, 26810, 31406, 37534, 40180, 53620, 62812, 75068, 78515, 93835, 109921, 157030, 187670, 219842, 314060, 375340, 439684, 549605, 769447, 1099210, 1538894, 2198420, 3077788, 3847235, 7694470, 15388940]

約数ペア:

[(1, 15388940), (2, 7694470), (4, 3847235), (5, 3077788), (7, 2198420), (10, 1538894), (14, 1099210), (20, 769447), (28, 549605), (35, 439684), (41, 375340), (49, 314060), (70, 219842), (82, 187670), (98, 157030), (140, 109921), (164, 93835), (196, 78515), (205, 75068), (245, 62812), (287, 53620), (383, 40180), (410, 37534), (490, 31406), (574, 26810), (766, 20090), (820, 18767), (980, 15703), (1148, 13405), (1435, 10724), (1532, 10045), (1915, 8036), (2009, 7660), (2681, 5740), (2870, 5362), (3830, 4018)]