80968280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:249

約数の個数: 128

約数和(自身を含む): 209018880

約数和(自身を除く): 128050600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 31, 34, 40, 46, 62, 68, 85, 92, 115, 124, 136, 155, 167, 170, 184, 230, 248, 310, 334, 340, 391, 460, 527, 620, 668, 680, 713, 782, 835, 920, 1054, 1240, 1336, 1426, 1564, 1670, 1955, 2108, 2635, 2839, 2852, 3128, 3340, 3565, 3841, 3910, 4216, 5177, 5270, 5678, 5704, 6680, 7130, 7682, 7820, 10354, 10540, 11356, 12121, 14195, 14260, 15364, 15640, 19205, 20708, 21080, 22712, 24242, 25885, 28390, 28520, 30728, 38410, 41416, 48484, 51770, 56780, 60605, 65297, 76820, 88009, 96968, 103540, 113560, 119071, 121210, 130594, 153640, 176018, 207080, 238142, 242420, 261188, 326485, 352036, 440045, 476284, 484840, 522376, 595355, 652970, 704072, 880090, 952568, 1190710, 1305940, 1760180, 2024207, 2381420, 2611880, 3520360, 4048414, 4762840, 8096828, 10121035, 16193656, 20242070, 40484140, 80968280]

約数ペア:

[(1, 80968280), (2, 40484140), (4, 20242070), (5, 16193656), (8, 10121035), (10, 8096828), (17, 4762840), (20, 4048414), (23, 3520360), (31, 2611880), (34, 2381420), (40, 2024207), (46, 1760180), (62, 1305940), (68, 1190710), (85, 952568), (92, 880090), (115, 704072), (124, 652970), (136, 595355), (155, 522376), (167, 484840), (170, 476284), (184, 440045), (230, 352036), (248, 326485), (310, 261188), (334, 242420), (340, 238142), (391, 207080), (460, 176018), (527, 153640), (620, 130594), (668, 121210), (680, 119071), (713, 113560), (782, 103540), (835, 96968), (920, 88009), (1054, 76820), (1240, 65297), (1336, 60605), (1426, 56780), (1564, 51770), (1670, 48484), (1955, 41416), (2108, 38410), (2635, 30728), (2839, 28520), (2852, 28390), (3128, 25885), (3340, 24242), (3565, 22712), (3841, 21080), (3910, 20708), (4216, 19205), (5177, 15640), (5270, 15364), (5678, 14260), (5704, 14195), (6680, 12121), (7130, 11356), (7682, 10540), (7820, 10354)]