18201702920

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{487}}^1\times {\mathrm{6271}}^1$

素因数の和:6918

約数の個数: 64

約数和(自身を含む): 41319936000

約数和(自身を除く): 23118233080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 487, 596, 745, 974, 1192, 1490, 1948, 2435, 2980, 3896, 4870, 5960, 6271, 9740, 12542, 19480, 25084, 31355, 50168, 62710, 72563, 125420, 145126, 250840, 290252, 362815, 580504, 725630, 934379, 1451260, 1868758, 2902520, 3053977, 3737516, 4671895, 6107954, 7475032, 9343790, 12215908, 15269885, 18687580, 24431816, 30539770, 37375160, 61079540, 122159080, 455042573, 910085146, 1820170292, 2275212865, 3640340584, 4550425730, 9100851460, 18201702920]

約数ペア:

[(1, 18201702920), (2, 9100851460), (4, 4550425730), (5, 3640340584), (8, 2275212865), (10, 1820170292), (20, 910085146), (40, 455042573), (149, 122159080), (298, 61079540), (487, 37375160), (596, 30539770), (745, 24431816), (974, 18687580), (1192, 15269885), (1490, 12215908), (1948, 9343790), (2435, 7475032), (2980, 6107954), (3896, 4671895), (4870, 3737516), (5960, 3053977), (6271, 2902520), (9740, 1868758), (12542, 1451260), (19480, 934379), (25084, 725630), (31355, 580504), (50168, 362815), (62710, 290252), (72563, 250840), (125420, 145126)]