19715800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7583}}^1$

素因数の和:7612

約数の個数: 48

約数和(自身を含む): 49371840

約数和(自身を除く): 29656040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 7583, 15166, 30332, 37915, 60664, 75830, 98579, 151660, 189575, 197158, 303320, 379150, 394316, 492895, 758300, 788632, 985790, 1516600, 1971580, 2464475, 3943160, 4928950, 9857900, 19715800]

約数ペア:

[(1, 19715800), (2, 9857900), (4, 4928950), (5, 3943160), (8, 2464475), (10, 1971580), (13, 1516600), (20, 985790), (25, 788632), (26, 758300), (40, 492895), (50, 394316), (52, 379150), (65, 303320), (100, 197158), (104, 189575), (130, 151660), (200, 98579), (260, 75830), (325, 60664), (520, 37915), (650, 30332), (1300, 15166), (2600, 7583)]