20452560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2749}}^1$

素因数の和:2796

約数の個数: 80

約数和(自身を含む): 65472000

約数和(自身を除く): 45019440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 2749, 3720, 5498, 7440, 8247, 10996, 13745, 16494, 21992, 27490, 32988, 41235, 43984, 54980, 65976, 82470, 85219, 109960, 131952, 164940, 170438, 219920, 255657, 329880, 340876, 426095, 511314, 659760, 681752, 852190, 1022628, 1278285, 1363504, 1704380, 2045256, 2556570, 3408760, 4090512, 5113140, 6817520, 10226280, 20452560]

約数ペア:

[(1, 20452560), (2, 10226280), (3, 6817520), (4, 5113140), (5, 4090512), (6, 3408760), (8, 2556570), (10, 2045256), (12, 1704380), (15, 1363504), (16, 1278285), (20, 1022628), (24, 852190), (30, 681752), (31, 659760), (40, 511314), (48, 426095), (60, 340876), (62, 329880), (80, 255657), (93, 219920), (120, 170438), (124, 164940), (155, 131952), (186, 109960), (240, 85219), (248, 82470), (310, 65976), (372, 54980), (465, 43984), (496, 41235), (620, 32988), (744, 27490), (930, 21992), (1240, 16494), (1488, 13745), (1860, 10996), (2480, 8247), (2749, 7440), (3720, 5498)]