1993427720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1607603}}^1$

素因数の和:1607645

約数の個数: 32

約数和(自身を含む): 4629899520

約数和(自身を除く): 2636471800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1607603, 3215206, 6430412, 8038015, 12860824, 16076030, 32152060, 49835693, 64304120, 99671386, 199342772, 249178465, 398685544, 498356930, 996713860, 1993427720]

約数ペア:

[(1, 1993427720), (2, 996713860), (4, 498356930), (5, 398685544), (8, 249178465), (10, 199342772), (20, 99671386), (31, 64304120), (40, 49835693), (62, 32152060), (124, 16076030), (155, 12860824), (248, 8038015), (310, 6430412), (620, 3215206), (1240, 1607603)]