20724990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4831}}^1$

素因数の和:4865

約数の個数: 64

約数和(自身を含む): 58447872

約数和(自身を除く): 37722882

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 33, 39, 55, 65, 66, 78, 110, 130, 143, 165, 195, 286, 330, 390, 429, 715, 858, 1430, 2145, 4290, 4831, 9662, 14493, 24155, 28986, 48310, 53141, 62803, 72465, 106282, 125606, 144930, 159423, 188409, 265705, 314015, 318846, 376818, 531410, 628030, 690833, 797115, 942045, 1381666, 1594230, 1884090, 2072499, 3454165, 4144998, 6908330, 10362495, 20724990]

約数ペア:

[(1, 20724990), (2, 10362495), (3, 6908330), (5, 4144998), (6, 3454165), (10, 2072499), (11, 1884090), (13, 1594230), (15, 1381666), (22, 942045), (26, 797115), (30, 690833), (33, 628030), (39, 531410), (55, 376818), (65, 318846), (66, 314015), (78, 265705), (110, 188409), (130, 159423), (143, 144930), (165, 125606), (195, 106282), (286, 72465), (330, 62803), (390, 53141), (429, 48310), (715, 28986), (858, 24155), (1430, 14493), (2145, 9662), (4290, 4831)]