20093840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^2$

素因数の和:304

約数の個数: 60

約数和(自身を含む): 50676444

約数和(自身を除く): 30582604

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 139, 208, 260, 278, 520, 556, 695, 1040, 1112, 1390, 1807, 2224, 2780, 3614, 5560, 7228, 9035, 11120, 14456, 18070, 19321, 28912, 36140, 38642, 72280, 77284, 96605, 144560, 154568, 193210, 251173, 309136, 386420, 502346, 772840, 1004692, 1255865, 1545680, 2009384, 2511730, 4018768, 5023460, 10046920, 20093840]

約数ペア:

[(1, 20093840), (2, 10046920), (4, 5023460), (5, 4018768), (8, 2511730), (10, 2009384), (13, 1545680), (16, 1255865), (20, 1004692), (26, 772840), (40, 502346), (52, 386420), (65, 309136), (80, 251173), (104, 193210), (130, 154568), (139, 144560), (208, 96605), (260, 77284), (278, 72280), (520, 38642), (556, 36140), (695, 28912), (1040, 19321), (1112, 18070), (1390, 14456), (1807, 11120), (2224, 9035), (2780, 7228), (3614, 5560)]