212741840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{787}}^1$

素因数の和:940

約数の個数: 80

約数和(自身を含む): 515919360

約数和(自身を除く): 303177520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 109, 124, 155, 218, 248, 310, 436, 496, 545, 620, 787, 872, 1090, 1240, 1574, 1744, 2180, 2480, 3148, 3379, 3935, 4360, 6296, 6758, 7870, 8720, 12592, 13516, 15740, 16895, 24397, 27032, 31480, 33790, 48794, 54064, 62960, 67580, 85783, 97588, 121985, 135160, 171566, 195176, 243970, 270320, 343132, 390352, 428915, 487940, 686264, 857830, 975880, 1372528, 1715660, 1951760, 2659273, 3431320, 5318546, 6862640, 10637092, 13296365, 21274184, 26592730, 42548368, 53185460, 106370920, 212741840]

約数ペア:

[(1, 212741840), (2, 106370920), (4, 53185460), (5, 42548368), (8, 26592730), (10, 21274184), (16, 13296365), (20, 10637092), (31, 6862640), (40, 5318546), (62, 3431320), (80, 2659273), (109, 1951760), (124, 1715660), (155, 1372528), (218, 975880), (248, 857830), (310, 686264), (436, 487940), (496, 428915), (545, 390352), (620, 343132), (787, 270320), (872, 243970), (1090, 195176), (1240, 171566), (1574, 135160), (1744, 121985), (2180, 97588), (2480, 85783), (3148, 67580), (3379, 62960), (3935, 54064), (4360, 48794), (6296, 33790), (6758, 31480), (7870, 27032), (8720, 24397), (12592, 16895), (13516, 15740)]