19703970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1531}}^1$

素因数の和:1568

約数の個数: 96

約数和(自身を含む): 60225984

約数和(自身を除く): 40522014

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 13, 15, 18, 22, 26, 30, 33, 39, 45, 55, 65, 66, 78, 90, 99, 110, 117, 130, 143, 165, 195, 198, 234, 286, 330, 390, 429, 495, 585, 715, 858, 990, 1170, 1287, 1430, 1531, 2145, 2574, 3062, 4290, 4593, 6435, 7655, 9186, 12870, 13779, 15310, 16841, 19903, 22965, 27558, 33682, 39806, 45930, 50523, 59709, 68895, 84205, 99515, 101046, 119418, 137790, 151569, 168410, 179127, 199030, 218933, 252615, 298545, 303138, 358254, 437866, 505230, 597090, 656799, 757845, 895635, 1094665, 1313598, 1515690, 1791270, 1970397, 2189330, 3283995, 3940794, 6567990, 9851985, 19703970]

約数ペア:

[(1, 19703970), (2, 9851985), (3, 6567990), (5, 3940794), (6, 3283995), (9, 2189330), (10, 1970397), (11, 1791270), (13, 1515690), (15, 1313598), (18, 1094665), (22, 895635), (26, 757845), (30, 656799), (33, 597090), (39, 505230), (45, 437866), (55, 358254), (65, 303138), (66, 298545), (78, 252615), (90, 218933), (99, 199030), (110, 179127), (117, 168410), (130, 151569), (143, 137790), (165, 119418), (195, 101046), (198, 99515), (234, 84205), (286, 68895), (330, 59709), (390, 50523), (429, 45930), (495, 39806), (585, 33682), (715, 27558), (858, 22965), (990, 19903), (1170, 16841), (1287, 15310), (1430, 13779), (1531, 12870), (2145, 9186), (2574, 7655), (3062, 6435), (4290, 4593)]