20686560

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{607}}^1$

素因数の和:696

約数の個数: 96

約数和(自身を含む): 66189312

約数和(自身を除く): 45502752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 71, 80, 96, 120, 142, 160, 213, 240, 284, 355, 426, 480, 568, 607, 710, 852, 1065, 1136, 1214, 1420, 1704, 1821, 2130, 2272, 2428, 2840, 3035, 3408, 3642, 4260, 4856, 5680, 6070, 6816, 7284, 8520, 9105, 9712, 11360, 12140, 14568, 17040, 18210, 19424, 24280, 29136, 34080, 36420, 43097, 48560, 58272, 72840, 86194, 97120, 129291, 145680, 172388, 215485, 258582, 291360, 344776, 430970, 517164, 646455, 689552, 861940, 1034328, 1292910, 1379104, 1723880, 2068656, 2585820, 3447760, 4137312, 5171640, 6895520, 10343280, 20686560]

約数ペア:

[(1, 20686560), (2, 10343280), (3, 6895520), (4, 5171640), (5, 4137312), (6, 3447760), (8, 2585820), (10, 2068656), (12, 1723880), (15, 1379104), (16, 1292910), (20, 1034328), (24, 861940), (30, 689552), (32, 646455), (40, 517164), (48, 430970), (60, 344776), (71, 291360), (80, 258582), (96, 215485), (120, 172388), (142, 145680), (160, 129291), (213, 97120), (240, 86194), (284, 72840), (355, 58272), (426, 48560), (480, 43097), (568, 36420), (607, 34080), (710, 29136), (852, 24280), (1065, 19424), (1136, 18210), (1214, 17040), (1420, 14568), (1704, 12140), (1821, 11360), (2130, 9712), (2272, 9105), (2428, 8520), (2840, 7284), (3035, 6816), (3408, 6070), (3642, 5680), (4260, 4856)]