15000520

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 35251200

約数和(自身を除く): 20250680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 79, 94, 101, 158, 188, 202, 235, 316, 376, 395, 404, 470, 505, 632, 790, 808, 940, 1010, 1580, 1880, 2020, 3160, 3713, 4040, 4747, 7426, 7979, 9494, 14852, 15958, 18565, 18988, 23735, 29704, 31916, 37130, 37976, 39895, 47470, 63832, 74260, 79790, 94940, 148520, 159580, 189880, 319160, 375013, 750026, 1500052, 1875065, 3000104, 3750130, 7500260, 15000520]

約数ペア:

[(1, 15000520), (2, 7500260), (4, 3750130), (5, 3000104), (8, 1875065), (10, 1500052), (20, 750026), (40, 375013), (47, 319160), (79, 189880), (94, 159580), (101, 148520), (158, 94940), (188, 79790), (202, 74260), (235, 63832), (316, 47470), (376, 39895), (395, 37976), (404, 37130), (470, 31916), (505, 29704), (632, 23735), (790, 18988), (808, 18565), (940, 15958), (1010, 14852), (1580, 9494), (1880, 7979), (2020, 7426), (3160, 4747), (3713, 4040)]