20391300

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:322

約数の個数: 108

約数和(自身を含む): 64770160

約数和(自身を除く): 44378860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 139, 150, 163, 180, 225, 278, 300, 326, 417, 450, 489, 556, 652, 695, 815, 834, 900, 978, 1251, 1390, 1467, 1630, 1668, 1956, 2085, 2445, 2502, 2780, 2934, 3260, 3475, 4075, 4170, 4890, 5004, 5868, 6255, 6950, 7335, 8150, 8340, 9780, 10425, 12225, 12510, 13900, 14670, 16300, 20850, 22657, 24450, 25020, 29340, 31275, 36675, 41700, 45314, 48900, 62550, 67971, 73350, 90628, 113285, 125100, 135942, 146700, 203913, 226570, 271884, 339855, 407826, 453140, 566425, 679710, 815652, 1019565, 1132850, 1359420, 1699275, 2039130, 2265700, 3398550, 4078260, 5097825, 6797100, 10195650, 20391300]

約数ペア:

[(1, 20391300), (2, 10195650), (3, 6797100), (4, 5097825), (5, 4078260), (6, 3398550), (9, 2265700), (10, 2039130), (12, 1699275), (15, 1359420), (18, 1132850), (20, 1019565), (25, 815652), (30, 679710), (36, 566425), (45, 453140), (50, 407826), (60, 339855), (75, 271884), (90, 226570), (100, 203913), (139, 146700), (150, 135942), (163, 125100), (180, 113285), (225, 90628), (278, 73350), (300, 67971), (326, 62550), (417, 48900), (450, 45314), (489, 41700), (556, 36675), (652, 31275), (695, 29340), (815, 25020), (834, 24450), (900, 22657), (978, 20850), (1251, 16300), (1390, 14670), (1467, 13900), (1630, 12510), (1668, 12225), (1956, 10425), (2085, 9780), (2445, 8340), (2502, 8150), (2780, 7335), (2934, 6950), (3260, 6255), (3475, 5868), (4075, 5004), (4170, 4890)]