18738750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{263}}^1$

素因数の和:307

約数の個数: 80

約数和(自身を含む): 49484160

約数和(自身を除く): 30745410

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 25, 30, 38, 50, 57, 75, 95, 114, 125, 150, 190, 250, 263, 285, 375, 475, 526, 570, 625, 750, 789, 950, 1250, 1315, 1425, 1578, 1875, 2375, 2630, 2850, 3750, 3945, 4750, 4997, 6575, 7125, 7890, 9994, 11875, 13150, 14250, 14991, 19725, 23750, 24985, 29982, 32875, 35625, 39450, 49970, 65750, 71250, 74955, 98625, 124925, 149910, 164375, 197250, 249850, 328750, 374775, 493125, 624625, 749550, 986250, 1249250, 1873875, 3123125, 3747750, 6246250, 9369375, 18738750]

約数ペア:

[(1, 18738750), (2, 9369375), (3, 6246250), (5, 3747750), (6, 3123125), (10, 1873875), (15, 1249250), (19, 986250), (25, 749550), (30, 624625), (38, 493125), (50, 374775), (57, 328750), (75, 249850), (95, 197250), (114, 164375), (125, 149910), (150, 124925), (190, 98625), (250, 74955), (263, 71250), (285, 65750), (375, 49970), (475, 39450), (526, 35625), (570, 32875), (625, 29982), (750, 24985), (789, 23750), (950, 19725), (1250, 14991), (1315, 14250), (1425, 13150), (1578, 11875), (1875, 9994), (2375, 7890), (2630, 7125), (2850, 6575), (3750, 4997), (3945, 4750)]