279911520

素因数分解:

$2^5\times 3^2\times 5^1\times 7^2\times {\mathrm{3967}}^1$

素因数の和:4002

約数の個数: 216

約数和(自身を含む): 1111428864

約数和(自身を除く): 831517344

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, 1176, 1260, 1440, 1470, 1568, 1680, 1764, 1960, 2016, 2205, 2352, 2520, 2940, 3360, 3528, 3920, 3967, 4410, 4704, 5040, 5880, 7056, 7840, 7934, 8820, 10080, 11760, 11901, 14112, 15868, 17640, 19835, 23520, 23802, 27769, 31736, 35280, 35703, 39670, 47604, 55538, 59505, 63472, 70560, 71406, 79340, 83307, 95208, 111076, 119010, 126944, 138845, 142812, 158680, 166614, 178515, 190416, 194383, 222152, 238020, 249921, 277690, 285624, 317360, 333228, 357030, 380832, 388766, 416535, 444304, 476040, 499842, 555380, 571248, 583149, 634720, 666456, 714060, 777532, 833070, 888608, 952080, 971915, 999684, 1110760, 1142496, 1166298, 1249605, 1332912, 1428120, 1555064, 1666140, 1749447, 1904160, 1943830, 1999368, 2221520, 2332596, 2499210, 2665824, 2856240, 2915745, 3110128, 3332280, 3498894, 3887660, 3998736, 4443040, 4665192, 4998420, 5712480, 5831490, 6220256, 6664560, 6997788, 7775320, 7997472, 8747235, 9330384, 9996840, 11662980, 13329120, 13995576, 15550640, 17494470, 18660768, 19993680, 23325960, 27991152, 31101280, 34988940, 39987360, 46651920, 55982304, 69977880, 93303840, 139955760, 279911520]

約数ペア:

[(1, 279911520), (2, 139955760), (3, 93303840), (4, 69977880), (5, 55982304), (6, 46651920), (7, 39987360), (8, 34988940), (9, 31101280), (10, 27991152), (12, 23325960), (14, 19993680), (15, 18660768), (16, 17494470), (18, 15550640), (20, 13995576), (21, 13329120), (24, 11662980), (28, 9996840), (30, 9330384), (32, 8747235), (35, 7997472), (36, 7775320), (40, 6997788), (42, 6664560), (45, 6220256), (48, 5831490), (49, 5712480), (56, 4998420), (60, 4665192), (63, 4443040), (70, 3998736), (72, 3887660), (80, 3498894), (84, 3332280), (90, 3110128), (96, 2915745), (98, 2856240), (105, 2665824), (112, 2499210), (120, 2332596), (126, 2221520), (140, 1999368), (144, 1943830), (147, 1904160), (160, 1749447), (168, 1666140), (180, 1555064), (196, 1428120), (210, 1332912), (224, 1249605), (240, 1166298), (245, 1142496), (252, 1110760), (280, 999684), (288, 971915), (294, 952080), (315, 888608), (336, 833070), (360, 777532), (392, 714060), (420, 666456), (441, 634720), (480, 583149), (490, 571248), (504, 555380), (560, 499842), (588, 476040), (630, 444304), (672, 416535), (720, 388766), (735, 380832), (784, 357030), (840, 333228), (882, 317360), (980, 285624), (1008, 277690), (1120, 249921), (1176, 238020), (1260, 222152), (1440, 194383), (1470, 190416), (1568, 178515), (1680, 166614), (1764, 158680), (1960, 142812), (2016, 138845), (2205, 126944), (2352, 119010), (2520, 111076), (2940, 95208), (3360, 83307), (3528, 79340), (3920, 71406), (3967, 70560), (4410, 63472), (4704, 59505), (5040, 55538), (5880, 47604), (7056, 39670), (7840, 35703), (7934, 35280), (8820, 31736), (10080, 27769), (11760, 23802), (11901, 23520), (14112, 19835), (15868, 17640)]