638388

素因数分解:

$2^2\times 3^3\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:293

約数の個数: 48

約数和(自身を含む): 1733760

約数和(自身を除く): 1095372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 92, 108, 138, 207, 257, 276, 414, 514, 621, 771, 828, 1028, 1242, 1542, 2313, 2484, 3084, 4626, 5911, 6939, 9252, 11822, 13878, 17733, 23644, 27756, 35466, 53199, 70932, 106398, 159597, 212796, 319194, 638388]

約数ペア:

[(1, 638388), (2, 319194), (3, 212796), (4, 159597), (6, 106398), (9, 70932), (12, 53199), (18, 35466), (23, 27756), (27, 23644), (36, 17733), (46, 13878), (54, 11822), (69, 9252), (92, 6939), (108, 5911), (138, 4626), (207, 3084), (257, 2484), (276, 2313), (414, 1542), (514, 1242), (621, 1028), (771, 828)]