268187240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{394393}}^1$

素因数の和:394421

約数の個数: 32

約数和(自身を含む): 638918280

約数和(自身を除く): 370731040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 394393, 788786, 1577572, 1971965, 3155144, 3943930, 6704681, 7887860, 13409362, 15775720, 26818724, 33523405, 53637448, 67046810, 134093620, 268187240]

約数ペア:

[(1, 268187240), (2, 134093620), (4, 67046810), (5, 53637448), (8, 33523405), (10, 26818724), (17, 15775720), (20, 13409362), (34, 7887860), (40, 6704681), (68, 3943930), (85, 3155144), (136, 1971965), (170, 1577572), (340, 788786), (680, 394393)]