278880456950

素因数分解:

$2^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{2521}}^1\times {\mathrm{16889}}^1$

素因数の和:19553

約数の個数: 48

約数和(自身を含む): 522915616080

約数和(自身を除く): 244035159130

約数列:

[1, 2, 5, 10, 25, 50, 131, 262, 655, 1310, 2521, 3275, 5042, 6550, 12605, 16889, 25210, 33778, 63025, 84445, 126050, 168890, 330251, 422225, 660502, 844450, 1651255, 2212459, 3302510, 4424918, 8256275, 11062295, 16512550, 22124590, 42577169, 55311475, 85154338, 110622950, 212885845, 425771690, 1064429225, 2128858450, 5577609139, 11155218278, 27888045695, 55776091390, 139440228475, 278880456950]

約数ペア:

[(1, 278880456950), (2, 139440228475), (5, 55776091390), (10, 27888045695), (25, 11155218278), (50, 5577609139), (131, 2128858450), (262, 1064429225), (655, 425771690), (1310, 212885845), (2521, 110622950), (3275, 85154338), (5042, 55311475), (6550, 42577169), (12605, 22124590), (16889, 16512550), (25210, 11062295), (33778, 8256275), (63025, 4424918), (84445, 3302510), (126050, 2212459), (168890, 1651255), (330251, 844450), (422225, 660502)]