18108750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{439}}^1$

素因数の和:475

約数の個数: 80

約数和(自身を含む): 49484160

約数和(自身を除く): 31375410

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 30, 33, 50, 55, 66, 75, 110, 125, 150, 165, 250, 275, 330, 375, 439, 550, 625, 750, 825, 878, 1250, 1317, 1375, 1650, 1875, 2195, 2634, 2750, 3750, 4125, 4390, 4829, 6585, 6875, 8250, 9658, 10975, 13170, 13750, 14487, 20625, 21950, 24145, 28974, 32925, 41250, 48290, 54875, 65850, 72435, 109750, 120725, 144870, 164625, 241450, 274375, 329250, 362175, 548750, 603625, 724350, 823125, 1207250, 1646250, 1810875, 3018125, 3621750, 6036250, 9054375, 18108750]

約数ペア:

[(1, 18108750), (2, 9054375), (3, 6036250), (5, 3621750), (6, 3018125), (10, 1810875), (11, 1646250), (15, 1207250), (22, 823125), (25, 724350), (30, 603625), (33, 548750), (50, 362175), (55, 329250), (66, 274375), (75, 241450), (110, 164625), (125, 144870), (150, 120725), (165, 109750), (250, 72435), (275, 65850), (330, 54875), (375, 48290), (439, 41250), (550, 32925), (625, 28974), (750, 24145), (825, 21950), (878, 20625), (1250, 14487), (1317, 13750), (1375, 13170), (1650, 10975), (1875, 9658), (2195, 8250), (2634, 6875), (2750, 6585), (3750, 4829), (4125, 4390)]