25575760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{419}}^1$

素因数の和:548

約数の個数: 80

約数和(自身を含む): 68745600

約数和(自身を除く): 43169840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 280, 419, 436, 545, 560, 763, 838, 872, 1090, 1526, 1676, 1744, 2095, 2180, 2933, 3052, 3352, 3815, 4190, 4360, 5866, 6104, 6704, 7630, 8380, 8720, 11732, 12208, 14665, 15260, 16760, 23464, 29330, 30520, 33520, 45671, 46928, 58660, 61040, 91342, 117320, 182684, 228355, 234640, 319697, 365368, 456710, 639394, 730736, 913420, 1278788, 1598485, 1826840, 2557576, 3196970, 3653680, 5115152, 6393940, 12787880, 25575760]

約数ペア:

[(1, 25575760), (2, 12787880), (4, 6393940), (5, 5115152), (7, 3653680), (8, 3196970), (10, 2557576), (14, 1826840), (16, 1598485), (20, 1278788), (28, 913420), (35, 730736), (40, 639394), (56, 456710), (70, 365368), (80, 319697), (109, 234640), (112, 228355), (140, 182684), (218, 117320), (280, 91342), (419, 61040), (436, 58660), (545, 46928), (560, 45671), (763, 33520), (838, 30520), (872, 29330), (1090, 23464), (1526, 16760), (1676, 15260), (1744, 14665), (2095, 12208), (2180, 11732), (2933, 8720), (3052, 8380), (3352, 7630), (3815, 6704), (4190, 6104), (4360, 5866)]