1979900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1523}}^1$

素因数の和:1550

約数の個数: 36

約数和(自身を含む): 4629912

約数和(自身を除く): 2650012

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 1523, 3046, 6092, 7615, 15230, 19799, 30460, 38075, 39598, 76150, 79196, 98995, 152300, 197990, 395980, 494975, 989950, 1979900]

約数ペア:

[(1, 1979900), (2, 989950), (4, 494975), (5, 395980), (10, 197990), (13, 152300), (20, 98995), (25, 79196), (26, 76150), (50, 39598), (52, 38075), (65, 30460), (100, 19799), (130, 15230), (260, 7615), (325, 6092), (650, 3046), (1300, 1523)]