20143760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2767}}^1$

素因数の和:2800

約数の個数: 80

約数和(自身を含む): 57662976

約数和(自身を除く): 37519216

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 2767, 3640, 5534, 7280, 11068, 13835, 19369, 22136, 27670, 35971, 38738, 44272, 55340, 71942, 77476, 96845, 110680, 143884, 154952, 179855, 193690, 221360, 251797, 287768, 309904, 359710, 387380, 503594, 575536, 719420, 774760, 1007188, 1258985, 1438840, 1549520, 2014376, 2517970, 2877680, 4028752, 5035940, 10071880, 20143760]

約数ペア:

[(1, 20143760), (2, 10071880), (4, 5035940), (5, 4028752), (7, 2877680), (8, 2517970), (10, 2014376), (13, 1549520), (14, 1438840), (16, 1258985), (20, 1007188), (26, 774760), (28, 719420), (35, 575536), (40, 503594), (52, 387380), (56, 359710), (65, 309904), (70, 287768), (80, 251797), (91, 221360), (104, 193690), (112, 179855), (130, 154952), (140, 143884), (182, 110680), (208, 96845), (260, 77476), (280, 71942), (364, 55340), (455, 44272), (520, 38738), (560, 35971), (728, 27670), (910, 22136), (1040, 19369), (1456, 13835), (1820, 11068), (2767, 7280), (3640, 5534)]