19379750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 40098240

約数和(自身を除く): 20718490

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 67, 89, 125, 130, 134, 178, 250, 325, 335, 445, 650, 670, 871, 890, 1157, 1625, 1675, 1742, 2225, 2314, 3250, 3350, 4355, 4450, 5785, 5963, 8375, 8710, 11125, 11570, 11926, 16750, 21775, 22250, 28925, 29815, 43550, 57850, 59630, 77519, 108875, 144625, 149075, 155038, 217750, 289250, 298150, 387595, 745375, 775190, 1490750, 1937975, 3875950, 9689875, 19379750]

約数ペア:

[(1, 19379750), (2, 9689875), (5, 3875950), (10, 1937975), (13, 1490750), (25, 775190), (26, 745375), (50, 387595), (65, 298150), (67, 289250), (89, 217750), (125, 155038), (130, 149075), (134, 144625), (178, 108875), (250, 77519), (325, 59630), (335, 57850), (445, 43550), (650, 29815), (670, 28925), (871, 22250), (890, 21775), (1157, 16750), (1625, 11926), (1675, 11570), (1742, 11125), (2225, 8710), (2314, 8375), (3250, 5963), (3350, 5785), (4355, 4450)]