131623120

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{40129}}^1$

素因数の和:40183

約数の個数: 40

約数和(自身を含む): 313495560

約数和(自身を除く): 181872440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 40129, 80258, 160516, 200645, 321032, 401290, 642064, 802580, 1605160, 1645289, 3210320, 3290578, 6581156, 8226445, 13162312, 16452890, 26324624, 32905780, 65811560, 131623120]

約数ペア:

[(1, 131623120), (2, 65811560), (4, 32905780), (5, 26324624), (8, 16452890), (10, 13162312), (16, 8226445), (20, 6581156), (40, 3290578), (41, 3210320), (80, 1645289), (82, 1605160), (164, 802580), (205, 642064), (328, 401290), (410, 321032), (656, 200645), (820, 160516), (1640, 80258), (3280, 40129)]