20913000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{6971}}^1$

素因数の和:6995

約数の個数: 64

約数和(自身を含む): 65257920

約数和(自身を除く): 44344920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 750, 1000, 1500, 3000, 6971, 13942, 20913, 27884, 34855, 41826, 55768, 69710, 83652, 104565, 139420, 167304, 174275, 209130, 278840, 348550, 418260, 522825, 697100, 836520, 871375, 1045650, 1394200, 1742750, 2091300, 2614125, 3485500, 4182600, 5228250, 6971000, 10456500, 20913000]

約数ペア:

[(1, 20913000), (2, 10456500), (3, 6971000), (4, 5228250), (5, 4182600), (6, 3485500), (8, 2614125), (10, 2091300), (12, 1742750), (15, 1394200), (20, 1045650), (24, 871375), (25, 836520), (30, 697100), (40, 522825), (50, 418260), (60, 348550), (75, 278840), (100, 209130), (120, 174275), (125, 167304), (150, 139420), (200, 104565), (250, 83652), (300, 69710), (375, 55768), (500, 41826), (600, 34855), (750, 27884), (1000, 20913), (1500, 13942), (3000, 6971)]