20287020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{839}}^1$

素因数の和:895

約数の個数: 96

約数和(自身を含む): 63221760

約数和(自身を除く): 42934740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 62, 65, 78, 93, 124, 130, 155, 156, 186, 195, 260, 310, 372, 390, 403, 465, 620, 780, 806, 839, 930, 1209, 1612, 1678, 1860, 2015, 2418, 2517, 3356, 4030, 4195, 4836, 5034, 6045, 8060, 8390, 10068, 10907, 12090, 12585, 16780, 21814, 24180, 25170, 26009, 32721, 43628, 50340, 52018, 54535, 65442, 78027, 104036, 109070, 130045, 130884, 156054, 163605, 218140, 260090, 312108, 327210, 338117, 390135, 520180, 654420, 676234, 780270, 1014351, 1352468, 1560540, 1690585, 2028702, 3381170, 4057404, 5071755, 6762340, 10143510, 20287020]

約数ペア:

[(1, 20287020), (2, 10143510), (3, 6762340), (4, 5071755), (5, 4057404), (6, 3381170), (10, 2028702), (12, 1690585), (13, 1560540), (15, 1352468), (20, 1014351), (26, 780270), (30, 676234), (31, 654420), (39, 520180), (52, 390135), (60, 338117), (62, 327210), (65, 312108), (78, 260090), (93, 218140), (124, 163605), (130, 156054), (155, 130884), (156, 130045), (186, 109070), (195, 104036), (260, 78027), (310, 65442), (372, 54535), (390, 52018), (403, 50340), (465, 43628), (620, 32721), (780, 26009), (806, 25170), (839, 24180), (930, 21814), (1209, 16780), (1612, 12585), (1678, 12090), (1860, 10907), (2015, 10068), (2418, 8390), (2517, 8060), (3356, 6045), (4030, 5034), (4195, 4836)]