81214560

素因数分解:

$2^5\times 3^2\times 5^1\times 7^2\times {\mathrm{1151}}^1$

素因数の和:1186

約数の個数: 216

約数和(自身を含む): 322672896

約数和(自身を除く): 241458336

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 336, 360, 392, 420, 441, 480, 490, 504, 560, 588, 630, 672, 720, 735, 784, 840, 882, 980, 1008, 1120, 1151, 1176, 1260, 1440, 1470, 1568, 1680, 1764, 1960, 2016, 2205, 2302, 2352, 2520, 2940, 3360, 3453, 3528, 3920, 4410, 4604, 4704, 5040, 5755, 5880, 6906, 7056, 7840, 8057, 8820, 9208, 10080, 10359, 11510, 11760, 13812, 14112, 16114, 17265, 17640, 18416, 20718, 23020, 23520, 24171, 27624, 32228, 34530, 35280, 36832, 40285, 41436, 46040, 48342, 51795, 55248, 56399, 64456, 69060, 70560, 72513, 80570, 82872, 92080, 96684, 103590, 110496, 112798, 120855, 128912, 138120, 145026, 161140, 165744, 169197, 184160, 193368, 207180, 225596, 241710, 257824, 276240, 281995, 290052, 322280, 331488, 338394, 362565, 386736, 414360, 451192, 483420, 507591, 552480, 563990, 580104, 644560, 676788, 725130, 773472, 828720, 845985, 902384, 966840, 1015182, 1127980, 1160208, 1289120, 1353576, 1450260, 1657440, 1691970, 1804768, 1933680, 2030364, 2255960, 2320416, 2537955, 2707152, 2900520, 3383940, 3867360, 4060728, 4511920, 5075910, 5414304, 5801040, 6767880, 8121456, 9023840, 10151820, 11602080, 13535760, 16242912, 20303640, 27071520, 40607280, 81214560]

約数ペア:

[(1, 81214560), (2, 40607280), (3, 27071520), (4, 20303640), (5, 16242912), (6, 13535760), (7, 11602080), (8, 10151820), (9, 9023840), (10, 8121456), (12, 6767880), (14, 5801040), (15, 5414304), (16, 5075910), (18, 4511920), (20, 4060728), (21, 3867360), (24, 3383940), (28, 2900520), (30, 2707152), (32, 2537955), (35, 2320416), (36, 2255960), (40, 2030364), (42, 1933680), (45, 1804768), (48, 1691970), (49, 1657440), (56, 1450260), (60, 1353576), (63, 1289120), (70, 1160208), (72, 1127980), (80, 1015182), (84, 966840), (90, 902384), (96, 845985), (98, 828720), (105, 773472), (112, 725130), (120, 676788), (126, 644560), (140, 580104), (144, 563990), (147, 552480), (160, 507591), (168, 483420), (180, 451192), (196, 414360), (210, 386736), (224, 362565), (240, 338394), (245, 331488), (252, 322280), (280, 290052), (288, 281995), (294, 276240), (315, 257824), (336, 241710), (360, 225596), (392, 207180), (420, 193368), (441, 184160), (480, 169197), (490, 165744), (504, 161140), (560, 145026), (588, 138120), (630, 128912), (672, 120855), (720, 112798), (735, 110496), (784, 103590), (840, 96684), (882, 92080), (980, 82872), (1008, 80570), (1120, 72513), (1151, 70560), (1176, 69060), (1260, 64456), (1440, 56399), (1470, 55248), (1568, 51795), (1680, 48342), (1764, 46040), (1960, 41436), (2016, 40285), (2205, 36832), (2302, 35280), (2352, 34530), (2520, 32228), (2940, 27624), (3360, 24171), (3453, 23520), (3528, 23020), (3920, 20718), (4410, 18416), (4604, 17640), (4704, 17265), (5040, 16114), (5755, 14112), (5880, 13812), (6906, 11760), (7056, 11510), (7840, 10359), (8057, 10080), (8820, 9208)]