18213750

素因数分解:

$2^1\times 3^2\times 5^4\times {\mathrm{1619}}^1$

素因数の和:1647

約数の個数: 60

約数和(自身を含む): 49343580

約数和(自身を除く): 31129830

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 125, 150, 225, 250, 375, 450, 625, 750, 1125, 1250, 1619, 1875, 2250, 3238, 3750, 4857, 5625, 8095, 9714, 11250, 14571, 16190, 24285, 29142, 40475, 48570, 72855, 80950, 121425, 145710, 202375, 242850, 364275, 404750, 607125, 728550, 1011875, 1214250, 1821375, 2023750, 3035625, 3642750, 6071250, 9106875, 18213750]

約数ペア:

[(1, 18213750), (2, 9106875), (3, 6071250), (5, 3642750), (6, 3035625), (9, 2023750), (10, 1821375), (15, 1214250), (18, 1011875), (25, 728550), (30, 607125), (45, 404750), (50, 364275), (75, 242850), (90, 202375), (125, 145710), (150, 121425), (225, 80950), (250, 72855), (375, 48570), (450, 40475), (625, 29142), (750, 24285), (1125, 16190), (1250, 14571), (1619, 11250), (1875, 9714), (2250, 8095), (3238, 5625), (3750, 4857)]