81321200

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{11959}}^1$

素因数の和:11994

約数の個数: 60

約数和(自身を含む): 206884080

約数和(自身を除く): 125562880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1700, 3400, 6800, 11959, 23918, 47836, 59795, 95672, 119590, 191344, 203303, 239180, 298975, 406606, 478360, 597950, 813212, 956720, 1016515, 1195900, 1626424, 2033030, 2391800, 3252848, 4066060, 4783600, 5082575, 8132120, 10165150, 16264240, 20330300, 40660600, 81321200]

約数ペア:

[(1, 81321200), (2, 40660600), (4, 20330300), (5, 16264240), (8, 10165150), (10, 8132120), (16, 5082575), (17, 4783600), (20, 4066060), (25, 3252848), (34, 2391800), (40, 2033030), (50, 1626424), (68, 1195900), (80, 1016515), (85, 956720), (100, 813212), (136, 597950), (170, 478360), (200, 406606), (272, 298975), (340, 239180), (400, 203303), (425, 191344), (680, 119590), (850, 95672), (1360, 59795), (1700, 47836), (3400, 23918), (6800, 11959)]