1388431120

素因数分解:

$2^4\times 5^1\times {\mathrm{2383}}^1\times {\mathrm{7283}}^1$

素因数の和:9679

約数の個数: 40

約数和(自身を含む): 3229900416

約数和(自身を除く): 1841469296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2383, 4766, 7283, 9532, 11915, 14566, 19064, 23830, 29132, 36415, 38128, 47660, 58264, 72830, 95320, 116528, 145660, 190640, 291320, 582640, 17355389, 34710778, 69421556, 86776945, 138843112, 173553890, 277686224, 347107780, 694215560, 1388431120]

約数ペア:

[(1, 1388431120), (2, 694215560), (4, 347107780), (5, 277686224), (8, 173553890), (10, 138843112), (16, 86776945), (20, 69421556), (40, 34710778), (80, 17355389), (2383, 582640), (4766, 291320), (7283, 190640), (9532, 145660), (11915, 116528), (14566, 95320), (19064, 72830), (23830, 58264), (29132, 47660), (36415, 38128)]