20505570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1297}}^1$

素因数の和:1355

約数の個数: 64

約数和(自身を含む): 53830656

約数和(自身を除く): 33325086

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 31, 34, 51, 62, 85, 93, 102, 155, 170, 186, 255, 310, 465, 510, 527, 930, 1054, 1297, 1581, 2594, 2635, 3162, 3891, 5270, 6485, 7782, 7905, 12970, 15810, 19455, 22049, 38910, 40207, 44098, 66147, 80414, 110245, 120621, 132294, 201035, 220490, 241242, 330735, 402070, 603105, 661470, 683519, 1206210, 1367038, 2050557, 3417595, 4101114, 6835190, 10252785, 20505570]

約数ペア:

[(1, 20505570), (2, 10252785), (3, 6835190), (5, 4101114), (6, 3417595), (10, 2050557), (15, 1367038), (17, 1206210), (30, 683519), (31, 661470), (34, 603105), (51, 402070), (62, 330735), (85, 241242), (93, 220490), (102, 201035), (155, 132294), (170, 120621), (186, 110245), (255, 80414), (310, 66147), (465, 44098), (510, 40207), (527, 38910), (930, 22049), (1054, 19455), (1297, 15810), (1581, 12970), (2594, 7905), (2635, 7782), (3162, 6485), (3891, 5270)]