128938640

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{373}}^1$

素因数の和:564

約数の個数: 80

約数和(自身を含む): 313038000

約数和(自身を除く): 184099360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 149, 232, 290, 298, 373, 464, 580, 596, 745, 746, 1160, 1192, 1490, 1492, 1865, 2320, 2384, 2980, 2984, 3730, 4321, 5960, 5968, 7460, 8642, 10817, 11920, 14920, 17284, 21605, 21634, 29840, 34568, 43210, 43268, 54085, 55577, 69136, 86420, 86536, 108170, 111154, 172840, 173072, 216340, 222308, 277885, 345680, 432680, 444616, 555770, 865360, 889232, 1111540, 1611733, 2223080, 3223466, 4446160, 6446932, 8058665, 12893864, 16117330, 25787728, 32234660, 64469320, 128938640]

約数ペア:

[(1, 128938640), (2, 64469320), (4, 32234660), (5, 25787728), (8, 16117330), (10, 12893864), (16, 8058665), (20, 6446932), (29, 4446160), (40, 3223466), (58, 2223080), (80, 1611733), (116, 1111540), (145, 889232), (149, 865360), (232, 555770), (290, 444616), (298, 432680), (373, 345680), (464, 277885), (580, 222308), (596, 216340), (745, 173072), (746, 172840), (1160, 111154), (1192, 108170), (1490, 86536), (1492, 86420), (1865, 69136), (2320, 55577), (2384, 54085), (2980, 43268), (2984, 43210), (3730, 34568), (4321, 29840), (5960, 21634), (5968, 21605), (7460, 17284), (8642, 14920), (10817, 11920)]