218918280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1201}}^1$

素因数の和:1260

約数の個数: 192

約数和(自身を含む): 789281280

約数和(自身を除く): 570363000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 49, 56, 60, 62, 70, 84, 93, 98, 105, 120, 124, 140, 147, 155, 168, 186, 196, 210, 217, 245, 248, 280, 294, 310, 372, 392, 420, 434, 465, 490, 588, 620, 651, 735, 744, 840, 868, 930, 980, 1085, 1176, 1201, 1240, 1302, 1470, 1519, 1736, 1860, 1960, 2170, 2402, 2604, 2940, 3038, 3255, 3603, 3720, 4340, 4557, 4804, 5208, 5880, 6005, 6076, 6510, 7206, 7595, 8407, 8680, 9114, 9608, 12010, 12152, 13020, 14412, 15190, 16814, 18015, 18228, 22785, 24020, 25221, 26040, 28824, 30380, 33628, 36030, 36456, 37231, 42035, 45570, 48040, 50442, 58849, 60760, 67256, 72060, 74462, 84070, 91140, 100884, 111693, 117698, 126105, 144120, 148924, 168140, 176547, 182280, 186155, 201768, 223386, 235396, 252210, 260617, 294245, 297848, 336280, 353094, 372310, 446772, 470792, 504420, 521234, 558465, 588490, 706188, 744620, 781851, 882735, 893544, 1008840, 1042468, 1116930, 1176980, 1303085, 1412376, 1489240, 1563702, 1765470, 1824319, 2084936, 2233860, 2353960, 2606170, 3127404, 3530940, 3648638, 3909255, 4467720, 5212340, 5472957, 6254808, 7061880, 7297276, 7818510, 9121595, 10424680, 10945914, 14594552, 15637020, 18243190, 21891828, 27364785, 31274040, 36486380, 43783656, 54729570, 72972760, 109459140, 218918280]

約数ペア:

[(1, 218918280), (2, 109459140), (3, 72972760), (4, 54729570), (5, 43783656), (6, 36486380), (7, 31274040), (8, 27364785), (10, 21891828), (12, 18243190), (14, 15637020), (15, 14594552), (20, 10945914), (21, 10424680), (24, 9121595), (28, 7818510), (30, 7297276), (31, 7061880), (35, 6254808), (40, 5472957), (42, 5212340), (49, 4467720), (56, 3909255), (60, 3648638), (62, 3530940), (70, 3127404), (84, 2606170), (93, 2353960), (98, 2233860), (105, 2084936), (120, 1824319), (124, 1765470), (140, 1563702), (147, 1489240), (155, 1412376), (168, 1303085), (186, 1176980), (196, 1116930), (210, 1042468), (217, 1008840), (245, 893544), (248, 882735), (280, 781851), (294, 744620), (310, 706188), (372, 588490), (392, 558465), (420, 521234), (434, 504420), (465, 470792), (490, 446772), (588, 372310), (620, 353094), (651, 336280), (735, 297848), (744, 294245), (840, 260617), (868, 252210), (930, 235396), (980, 223386), (1085, 201768), (1176, 186155), (1201, 182280), (1240, 176547), (1302, 168140), (1470, 148924), (1519, 144120), (1736, 126105), (1860, 117698), (1960, 111693), (2170, 100884), (2402, 91140), (2604, 84070), (2940, 74462), (3038, 72060), (3255, 67256), (3603, 60760), (3720, 58849), (4340, 50442), (4557, 48040), (4804, 45570), (5208, 42035), (5880, 37231), (6005, 36456), (6076, 36030), (6510, 33628), (7206, 30380), (7595, 28824), (8407, 26040), (8680, 25221), (9114, 24020), (9608, 22785), (12010, 18228), (12152, 18015), (13020, 16814), (14412, 15190)]