31988560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:620

約数の個数: 80

約数和(自身を含む): 80726976

約数和(自身を除く): 48738416

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 43, 68, 80, 85, 86, 136, 170, 172, 215, 272, 340, 344, 430, 547, 680, 688, 731, 860, 1094, 1360, 1462, 1720, 2188, 2735, 2924, 3440, 3655, 4376, 5470, 5848, 7310, 8752, 9299, 10940, 11696, 14620, 18598, 21880, 23521, 29240, 37196, 43760, 46495, 47042, 58480, 74392, 92990, 94084, 117605, 148784, 185980, 188168, 235210, 371960, 376336, 399857, 470420, 743920, 799714, 940840, 1599428, 1881680, 1999285, 3198856, 3998570, 6397712, 7997140, 15994280, 31988560]

約数ペア:

[(1, 31988560), (2, 15994280), (4, 7997140), (5, 6397712), (8, 3998570), (10, 3198856), (16, 1999285), (17, 1881680), (20, 1599428), (34, 940840), (40, 799714), (43, 743920), (68, 470420), (80, 399857), (85, 376336), (86, 371960), (136, 235210), (170, 188168), (172, 185980), (215, 148784), (272, 117605), (340, 94084), (344, 92990), (430, 74392), (547, 58480), (680, 47042), (688, 46495), (731, 43760), (860, 37196), (1094, 29240), (1360, 23521), (1462, 21880), (1720, 18598), (2188, 14620), (2735, 11696), (2924, 10940), (3440, 9299), (3655, 8752), (4376, 7310), (5470, 5848)]