217881840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{82531}}^1$

素因数の和:82558

約数の個数: 80

約数和(自身を含む): 736845696

約数和(自身を除く): 518963856

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 82531, 165062, 247593, 330124, 412655, 495186, 660248, 825310, 907841, 990372, 1237965, 1320496, 1650620, 1815682, 1980744, 2475930, 2723523, 3301240, 3631364, 3961488, 4539205, 4951860, 5447046, 6602480, 7262728, 9078410, 9903720, 10894092, 13617615, 14525456, 18156820, 19807440, 21788184, 27235230, 36313640, 43576368, 54470460, 72627280, 108940920, 217881840]

約数ペア:

[(1, 217881840), (2, 108940920), (3, 72627280), (4, 54470460), (5, 43576368), (6, 36313640), (8, 27235230), (10, 21788184), (11, 19807440), (12, 18156820), (15, 14525456), (16, 13617615), (20, 10894092), (22, 9903720), (24, 9078410), (30, 7262728), (33, 6602480), (40, 5447046), (44, 4951860), (48, 4539205), (55, 3961488), (60, 3631364), (66, 3301240), (80, 2723523), (88, 2475930), (110, 1980744), (120, 1815682), (132, 1650620), (165, 1320496), (176, 1237965), (220, 990372), (240, 907841), (264, 825310), (330, 660248), (440, 495186), (528, 412655), (660, 330124), (880, 247593), (1320, 165062), (2640, 82531)]