388682960

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{156727}}^1$

素因数の和:156771

約数の個数: 40

約数和(自身を含む): 932845056

約数和(自身を除く): 544162096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 156727, 313454, 626908, 783635, 1253816, 1567270, 2507632, 3134540, 4858537, 6269080, 9717074, 12538160, 19434148, 24292685, 38868296, 48585370, 77736592, 97170740, 194341480, 388682960]

約数ペア:

[(1, 388682960), (2, 194341480), (4, 97170740), (5, 77736592), (8, 48585370), (10, 38868296), (16, 24292685), (20, 19434148), (31, 12538160), (40, 9717074), (62, 6269080), (80, 4858537), (124, 3134540), (155, 2507632), (248, 1567270), (310, 1253816), (496, 783635), (620, 626908), (1240, 313454), (2480, 156727)]