129400640

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21283}}^1$

素因数の和:21319

約数の個数: 56

約数和(自身を含む): 324368160

約数和(自身を除く): 194967520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 6080, 21283, 42566, 85132, 106415, 170264, 212830, 340528, 404377, 425660, 681056, 808754, 851320, 1362112, 1617508, 1702640, 2021885, 3235016, 3405280, 4043770, 6470032, 6810560, 8087540, 12940064, 16175080, 25880128, 32350160, 64700320, 129400640]

約数ペア:

[(1, 129400640), (2, 64700320), (4, 32350160), (5, 25880128), (8, 16175080), (10, 12940064), (16, 8087540), (19, 6810560), (20, 6470032), (32, 4043770), (38, 3405280), (40, 3235016), (64, 2021885), (76, 1702640), (80, 1617508), (95, 1362112), (152, 851320), (160, 808754), (190, 681056), (304, 425660), (320, 404377), (380, 340528), (608, 212830), (760, 170264), (1216, 106415), (1520, 85132), (3040, 42566), (6080, 21283)]