1228240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1181}}^1$

素因数の和:1207

約数の個数: 40

約数和(自身を含む): 3077928

約数和(自身を除く): 1849688

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1181, 2362, 4724, 5905, 9448, 11810, 15353, 18896, 23620, 30706, 47240, 61412, 76765, 94480, 122824, 153530, 245648, 307060, 614120, 1228240]

約数ペア:

[(1, 1228240), (2, 614120), (4, 307060), (5, 245648), (8, 153530), (10, 122824), (13, 94480), (16, 76765), (20, 61412), (26, 47240), (40, 30706), (52, 23620), (65, 18896), (80, 15353), (104, 11810), (130, 9448), (208, 5905), (260, 4724), (520, 2362), (1040, 1181)]