81778560

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{223}}^1$

素因数の和:436

約数の個数: 128

約数和(自身を含む): 263208960

約数和(自身を除く): 181430400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 191, 192, 223, 240, 320, 382, 384, 446, 480, 573, 640, 669, 764, 892, 955, 960, 1115, 1146, 1338, 1528, 1784, 1910, 1920, 2230, 2292, 2676, 2865, 3056, 3345, 3568, 3820, 4460, 4584, 5352, 5730, 6112, 6690, 7136, 7640, 8920, 9168, 10704, 11460, 12224, 13380, 14272, 15280, 17840, 18336, 21408, 22920, 24448, 26760, 28544, 30560, 35680, 36672, 42593, 42816, 45840, 53520, 61120, 71360, 73344, 85186, 85632, 91680, 107040, 122240, 127779, 142720, 170372, 183360, 212965, 214080, 255558, 340744, 366720, 425930, 428160, 511116, 638895, 681488, 851860, 1022232, 1277790, 1362976, 1703720, 2044464, 2555580, 2725952, 3407440, 4088928, 5111160, 5451904, 6814880, 8177856, 10222320, 13629760, 16355712, 20444640, 27259520, 40889280, 81778560]

約数ペア:

[(1, 81778560), (2, 40889280), (3, 27259520), (4, 20444640), (5, 16355712), (6, 13629760), (8, 10222320), (10, 8177856), (12, 6814880), (15, 5451904), (16, 5111160), (20, 4088928), (24, 3407440), (30, 2725952), (32, 2555580), (40, 2044464), (48, 1703720), (60, 1362976), (64, 1277790), (80, 1022232), (96, 851860), (120, 681488), (128, 638895), (160, 511116), (191, 428160), (192, 425930), (223, 366720), (240, 340744), (320, 255558), (382, 214080), (384, 212965), (446, 183360), (480, 170372), (573, 142720), (640, 127779), (669, 122240), (764, 107040), (892, 91680), (955, 85632), (960, 85186), (1115, 73344), (1146, 71360), (1338, 61120), (1528, 53520), (1784, 45840), (1910, 42816), (1920, 42593), (2230, 36672), (2292, 35680), (2676, 30560), (2865, 28544), (3056, 26760), (3345, 24448), (3568, 22920), (3820, 21408), (4460, 18336), (4584, 17840), (5352, 15280), (5730, 14272), (6112, 13380), (6690, 12224), (7136, 11460), (7640, 10704), (8920, 9168)]