68168750

素因数分解:

$2^1\times 5^5\times {\mathrm{13}}^1\times {\mathrm{839}}^1$

素因数の和:879

約数の個数: 48

約数和(自身を含む): 137803680

約数和(自身を除く): 69634930

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 839, 1250, 1625, 1678, 3125, 3250, 4195, 6250, 8125, 8390, 10907, 16250, 20975, 21814, 40625, 41950, 54535, 81250, 104875, 109070, 209750, 272675, 524375, 545350, 1048750, 1363375, 2621875, 2726750, 5243750, 6816875, 13633750, 34084375, 68168750]

約数ペア:

[(1, 68168750), (2, 34084375), (5, 13633750), (10, 6816875), (13, 5243750), (25, 2726750), (26, 2621875), (50, 1363375), (65, 1048750), (125, 545350), (130, 524375), (250, 272675), (325, 209750), (625, 109070), (650, 104875), (839, 81250), (1250, 54535), (1625, 41950), (1678, 40625), (3125, 21814), (3250, 20975), (4195, 16250), (6250, 10907), (8125, 8390)]