20483040

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{307}}^1$

素因数の和:464

約数の個数: 96

約数和(自身を含む): 65197440

約数和(自身を除く): 44714400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 139, 160, 240, 278, 307, 417, 480, 556, 614, 695, 834, 921, 1112, 1228, 1390, 1535, 1668, 1842, 2085, 2224, 2456, 2780, 3070, 3336, 3684, 4170, 4448, 4605, 4912, 5560, 6140, 6672, 7368, 8340, 9210, 9824, 11120, 12280, 13344, 14736, 16680, 18420, 22240, 24560, 29472, 33360, 36840, 42673, 49120, 66720, 73680, 85346, 128019, 147360, 170692, 213365, 256038, 341384, 426730, 512076, 640095, 682768, 853460, 1024152, 1280190, 1365536, 1706920, 2048304, 2560380, 3413840, 4096608, 5120760, 6827680, 10241520, 20483040]

約数ペア:

[(1, 20483040), (2, 10241520), (3, 6827680), (4, 5120760), (5, 4096608), (6, 3413840), (8, 2560380), (10, 2048304), (12, 1706920), (15, 1365536), (16, 1280190), (20, 1024152), (24, 853460), (30, 682768), (32, 640095), (40, 512076), (48, 426730), (60, 341384), (80, 256038), (96, 213365), (120, 170692), (139, 147360), (160, 128019), (240, 85346), (278, 73680), (307, 66720), (417, 49120), (480, 42673), (556, 36840), (614, 33360), (695, 29472), (834, 24560), (921, 22240), (1112, 18420), (1228, 16680), (1390, 14736), (1535, 13344), (1668, 12280), (1842, 11120), (2085, 9824), (2224, 9210), (2456, 8340), (2780, 7368), (3070, 6672), (3336, 6140), (3684, 5560), (4170, 4912), (4448, 4605)]