87756040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:263

約数の個数: 128

約数和(自身を含む): 226437120

約数和(自身を除く): 138681080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 31, 34, 40, 46, 62, 68, 85, 92, 115, 124, 136, 155, 170, 181, 184, 230, 248, 310, 340, 362, 391, 460, 527, 620, 680, 713, 724, 782, 905, 920, 1054, 1240, 1426, 1448, 1564, 1810, 1955, 2108, 2635, 2852, 3077, 3128, 3565, 3620, 3910, 4163, 4216, 5270, 5611, 5704, 6154, 7130, 7240, 7820, 8326, 10540, 11222, 12121, 12308, 14260, 15385, 15640, 16652, 20815, 21080, 22444, 24242, 24616, 28055, 28520, 30770, 33304, 41630, 44888, 48484, 56110, 60605, 61540, 70771, 83260, 95387, 96968, 112220, 121210, 123080, 129053, 141542, 166520, 190774, 224440, 242420, 258106, 283084, 353855, 381548, 476935, 484840, 516212, 566168, 645265, 707710, 763096, 953870, 1032424, 1290530, 1415420, 1907740, 2193901, 2581060, 2830840, 3815480, 4387802, 5162120, 8775604, 10969505, 17551208, 21939010, 43878020, 87756040]

約数ペア:

[(1, 87756040), (2, 43878020), (4, 21939010), (5, 17551208), (8, 10969505), (10, 8775604), (17, 5162120), (20, 4387802), (23, 3815480), (31, 2830840), (34, 2581060), (40, 2193901), (46, 1907740), (62, 1415420), (68, 1290530), (85, 1032424), (92, 953870), (115, 763096), (124, 707710), (136, 645265), (155, 566168), (170, 516212), (181, 484840), (184, 476935), (230, 381548), (248, 353855), (310, 283084), (340, 258106), (362, 242420), (391, 224440), (460, 190774), (527, 166520), (620, 141542), (680, 129053), (713, 123080), (724, 121210), (782, 112220), (905, 96968), (920, 95387), (1054, 83260), (1240, 70771), (1426, 61540), (1448, 60605), (1564, 56110), (1810, 48484), (1955, 44888), (2108, 41630), (2635, 33304), (2852, 30770), (3077, 28520), (3128, 28055), (3565, 24616), (3620, 24242), (3910, 22444), (4163, 21080), (4216, 20815), (5270, 16652), (5611, 15640), (5704, 15385), (6154, 14260), (7130, 12308), (7240, 12121), (7820, 11222), (8326, 10540)]