489128975

素因数分解:

$5^2\times {\mathrm{41}}^2\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:308

約数の個数: 36

約数和(自身を含む): 633264528

約数和(自身を除く): 144135553

約数列:

[1, 5, 25, 41, 103, 113, 205, 515, 565, 1025, 1681, 2575, 2825, 4223, 4633, 8405, 11639, 21115, 23165, 42025, 58195, 105575, 115825, 173143, 189953, 290975, 477199, 865715, 949765, 2385995, 4328575, 4748825, 11929975, 19565159, 97825795, 489128975]

約数ペア:

[(1, 489128975), (5, 97825795), (25, 19565159), (41, 11929975), (103, 4748825), (113, 4328575), (205, 2385995), (515, 949765), (565, 865715), (1025, 477199), (1681, 290975), (2575, 189953), (2825, 173143), (4223, 115825), (4633, 105575), (8405, 58195), (11639, 42025), (21115, 23165)]