312605020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{171761}}^1$

素因数の和:171790

約数の個数: 48

約数和(自身を含む): 807968448

約数和(自身を除く): 495363428

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 171761, 343522, 687044, 858805, 1202327, 1717610, 2232893, 2404654, 3435220, 4465786, 4809308, 6011635, 8931572, 11164465, 12023270, 15630251, 22328930, 24046540, 31260502, 44657860, 62521004, 78151255, 156302510, 312605020]

約数ペア:

[(1, 312605020), (2, 156302510), (4, 78151255), (5, 62521004), (7, 44657860), (10, 31260502), (13, 24046540), (14, 22328930), (20, 15630251), (26, 12023270), (28, 11164465), (35, 8931572), (52, 6011635), (65, 4809308), (70, 4465786), (91, 3435220), (130, 2404654), (140, 2232893), (182, 1717610), (260, 1202327), (364, 858805), (455, 687044), (910, 343522), (1820, 171761)]