19922140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{269}}^1$

素因数の和:331

約数の個数: 72

約数和(自身を含む): 50168160

約数和(自身を除く): 30246020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 269, 322, 460, 529, 538, 644, 805, 1058, 1076, 1345, 1610, 1883, 2116, 2645, 2690, 3220, 3703, 3766, 5290, 5380, 6187, 7406, 7532, 9415, 10580, 12374, 14812, 18515, 18830, 24748, 30935, 37030, 37660, 43309, 61870, 74060, 86618, 123740, 142301, 173236, 216545, 284602, 433090, 569204, 711505, 866180, 996107, 1423010, 1992214, 2846020, 3984428, 4980535, 9961070, 19922140]

約数ペア:

[(1, 19922140), (2, 9961070), (4, 4980535), (5, 3984428), (7, 2846020), (10, 1992214), (14, 1423010), (20, 996107), (23, 866180), (28, 711505), (35, 569204), (46, 433090), (70, 284602), (92, 216545), (115, 173236), (140, 142301), (161, 123740), (230, 86618), (269, 74060), (322, 61870), (460, 43309), (529, 37660), (538, 37030), (644, 30935), (805, 24748), (1058, 18830), (1076, 18515), (1345, 14812), (1610, 12374), (1883, 10580), (2116, 9415), (2645, 7532), (2690, 7406), (3220, 6187), (3703, 5380), (3766, 5290)]