90321680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{66413}}^1$

素因数の和:66443

約数の個数: 40

約数和(自身を含む): 222354072

約数和(自身を除く): 132032392

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 66413, 132826, 265652, 332065, 531304, 664130, 1062608, 1129021, 1328260, 2258042, 2656520, 4516084, 5313040, 5645105, 9032168, 11290210, 18064336, 22580420, 45160840, 90321680]

約数ペア:

[(1, 90321680), (2, 45160840), (4, 22580420), (5, 18064336), (8, 11290210), (10, 9032168), (16, 5645105), (17, 5313040), (20, 4516084), (34, 2656520), (40, 2258042), (68, 1328260), (80, 1129021), (85, 1062608), (136, 664130), (170, 531304), (272, 332065), (340, 265652), (680, 132826), (1360, 66413)]