20461500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{4547}}^1$

素因数の和:4572

約数の個数: 72

約数和(自身を含む): 64563408

約数和(自身を除く): 44101908

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4500, 4547, 9094, 13641, 18188, 22735, 27282, 40923, 45470, 54564, 68205, 81846, 90940, 113675, 136410, 163692, 204615, 227350, 272820, 341025, 409230, 454700, 568375, 682050, 818460, 1023075, 1136750, 1364100, 1705125, 2046150, 2273500, 3410250, 4092300, 5115375, 6820500, 10230750, 20461500]

約数ペア:

[(1, 20461500), (2, 10230750), (3, 6820500), (4, 5115375), (5, 4092300), (6, 3410250), (9, 2273500), (10, 2046150), (12, 1705125), (15, 1364100), (18, 1136750), (20, 1023075), (25, 818460), (30, 682050), (36, 568375), (45, 454700), (50, 409230), (60, 341025), (75, 272820), (90, 227350), (100, 204615), (125, 163692), (150, 136410), (180, 113675), (225, 90940), (250, 81846), (300, 68205), (375, 54564), (450, 45470), (500, 40923), (750, 27282), (900, 22735), (1125, 18188), (1500, 13641), (2250, 9094), (4500, 4547)]