16880492620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1432979}}^1$

素因数の和:1433038

約数の個数: 48

約数和(自身を含む): 38518502400

約数和(自身を除く): 21638009780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2945, 5890, 11780, 1432979, 2865958, 5731916, 7164895, 14329790, 27226601, 28659580, 44422349, 54453202, 88844698, 108906404, 136133005, 177689396, 222111745, 272266010, 444223490, 544532020, 844024631, 888446980, 1688049262, 3376098524, 4220123155, 8440246310, 16880492620]

約数ペア:

[(1, 16880492620), (2, 8440246310), (4, 4220123155), (5, 3376098524), (10, 1688049262), (19, 888446980), (20, 844024631), (31, 544532020), (38, 444223490), (62, 272266010), (76, 222111745), (95, 177689396), (124, 136133005), (155, 108906404), (190, 88844698), (310, 54453202), (380, 44422349), (589, 28659580), (620, 27226601), (1178, 14329790), (2356, 7164895), (2945, 5731916), (5890, 2865958), (11780, 1432979)]