1660880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1597}}^1$

素因数の和:1623

約数の個数: 40

約数和(自身を含む): 4161192

約数和(自身を除く): 2500312

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1597, 3194, 6388, 7985, 12776, 15970, 20761, 25552, 31940, 41522, 63880, 83044, 103805, 127760, 166088, 207610, 332176, 415220, 830440, 1660880]

約数ペア:

[(1, 1660880), (2, 830440), (4, 415220), (5, 332176), (8, 207610), (10, 166088), (13, 127760), (16, 103805), (20, 83044), (26, 63880), (40, 41522), (52, 31940), (65, 25552), (80, 20761), (104, 15970), (130, 12776), (208, 7985), (260, 6388), (520, 3194), (1040, 1597)]