156918803320

素因数分解:

$2^3\times 5^1\times {\mathrm{3989}}^1\times {\mathrm{983447}}^1$

素因数の和:987447

約数の個数: 32

約数和(自身を含む): 353156176800

約数和(自身を除く): 196237373480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3989, 7978, 15956, 19945, 31912, 39890, 79780, 159560, 983447, 1966894, 3933788, 4917235, 7867576, 9834470, 19668940, 39337880, 3922970083, 7845940166, 15691880332, 19614850415, 31383760664, 39229700830, 78459401660, 156918803320]

約数ペア:

[(1, 156918803320), (2, 78459401660), (4, 39229700830), (5, 31383760664), (8, 19614850415), (10, 15691880332), (20, 7845940166), (40, 3922970083), (3989, 39337880), (7978, 19668940), (15956, 9834470), (19945, 7867576), (31912, 4917235), (39890, 3933788), (79780, 1966894), (159560, 983447)]