325040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1$

素因数の和:269

約数の個数: 40

約数和(自身を含む): 803520

約数和(自身を除く): 478480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 239, 272, 340, 478, 680, 956, 1195, 1360, 1912, 2390, 3824, 4063, 4780, 8126, 9560, 16252, 19120, 20315, 32504, 40630, 65008, 81260, 162520, 325040]

約数ペア:

[(1, 325040), (2, 162520), (4, 81260), (5, 65008), (8, 40630), (10, 32504), (16, 20315), (17, 19120), (20, 16252), (34, 9560), (40, 8126), (68, 4780), (80, 4063), (85, 3824), (136, 2390), (170, 1912), (239, 1360), (272, 1195), (340, 956), (478, 680)]