19297360

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2213}}^1$

素因数の和:2335

約数の個数: 40

約数和(自身を含む): 45298440

約数和(自身を除く): 26001080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 2213, 4360, 4426, 8720, 8852, 11065, 17704, 22130, 35408, 44260, 88520, 177040, 241217, 482434, 964868, 1206085, 1929736, 2412170, 3859472, 4824340, 9648680, 19297360]

約数ペア:

[(1, 19297360), (2, 9648680), (4, 4824340), (5, 3859472), (8, 2412170), (10, 1929736), (16, 1206085), (20, 964868), (40, 482434), (80, 241217), (109, 177040), (218, 88520), (436, 44260), (545, 35408), (872, 22130), (1090, 17704), (1744, 11065), (2180, 8852), (2213, 8720), (4360, 4426)]