172280020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{25261}}^1$

素因数の和:25312

約数の個数: 48

約数和(自身を含む): 407425536

約数和(自身を除く): 235145516

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 25261, 50522, 101044, 126305, 252610, 277871, 505220, 555742, 783091, 1111484, 1389355, 1566182, 2778710, 3132364, 3915455, 5557420, 7830910, 8614001, 15661820, 17228002, 34456004, 43070005, 86140010, 172280020]

約数ペア:

[(1, 172280020), (2, 86140010), (4, 43070005), (5, 34456004), (10, 17228002), (11, 15661820), (20, 8614001), (22, 7830910), (31, 5557420), (44, 3915455), (55, 3132364), (62, 2778710), (110, 1566182), (124, 1389355), (155, 1111484), (220, 783091), (310, 555742), (341, 505220), (620, 277871), (682, 252610), (1364, 126305), (1705, 101044), (3410, 50522), (6820, 25261)]