81810240

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2749}}^1$

素因数の和:2800

約数の個数: 112

約数和(自身を含む): 268224000

約数和(自身を除く): 186413760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 155, 160, 186, 192, 240, 248, 310, 320, 372, 465, 480, 496, 620, 744, 930, 960, 992, 1240, 1488, 1860, 1984, 2480, 2749, 2976, 3720, 4960, 5498, 5952, 7440, 8247, 9920, 10996, 13745, 14880, 16494, 21992, 27490, 29760, 32988, 41235, 43984, 54980, 65976, 82470, 85219, 87968, 109960, 131952, 164940, 170438, 175936, 219920, 255657, 263904, 329880, 340876, 426095, 439840, 511314, 527808, 659760, 681752, 852190, 879680, 1022628, 1278285, 1319520, 1363504, 1704380, 2045256, 2556570, 2639040, 2727008, 3408760, 4090512, 5113140, 5454016, 6817520, 8181024, 10226280, 13635040, 16362048, 20452560, 27270080, 40905120, 81810240]

約数ペア:

[(1, 81810240), (2, 40905120), (3, 27270080), (4, 20452560), (5, 16362048), (6, 13635040), (8, 10226280), (10, 8181024), (12, 6817520), (15, 5454016), (16, 5113140), (20, 4090512), (24, 3408760), (30, 2727008), (31, 2639040), (32, 2556570), (40, 2045256), (48, 1704380), (60, 1363504), (62, 1319520), (64, 1278285), (80, 1022628), (93, 879680), (96, 852190), (120, 681752), (124, 659760), (155, 527808), (160, 511314), (186, 439840), (192, 426095), (240, 340876), (248, 329880), (310, 263904), (320, 255657), (372, 219920), (465, 175936), (480, 170438), (496, 164940), (620, 131952), (744, 109960), (930, 87968), (960, 85219), (992, 82470), (1240, 65976), (1488, 54980), (1860, 43984), (1984, 41235), (2480, 32988), (2749, 29760), (2976, 27490), (3720, 21992), (4960, 16494), (5498, 14880), (5952, 13745), (7440, 10996), (8247, 9920)]