2121860720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:996

約数の個数: 240

約数和(自身を含む): 6242457600

約数和(自身を除く): 4120596880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 31, 35, 38, 40, 49, 56, 62, 70, 76, 80, 95, 98, 112, 124, 133, 140, 152, 155, 190, 196, 217, 245, 248, 266, 280, 304, 310, 380, 392, 434, 490, 496, 532, 560, 589, 620, 665, 760, 784, 868, 919, 931, 980, 1064, 1085, 1178, 1240, 1330, 1519, 1520, 1736, 1838, 1862, 1960, 2128, 2170, 2356, 2480, 2660, 2945, 3038, 3472, 3676, 3724, 3920, 4123, 4340, 4595, 4655, 4712, 5320, 5890, 6076, 6433, 7352, 7448, 7595, 8246, 8680, 9190, 9310, 9424, 10640, 11780, 12152, 12866, 14704, 14896, 15190, 16492, 17360, 17461, 18380, 18620, 20615, 23560, 24304, 25732, 28489, 28861, 30380, 32165, 32984, 34922, 36760, 37240, 41230, 45031, 47120, 51464, 56978, 57722, 60760, 64330, 65968, 69844, 73520, 74480, 82460, 87305, 90062, 102928, 113956, 115444, 121520, 122227, 128660, 139688, 142445, 144305, 164920, 174610, 180124, 199423, 225155, 227912, 230888, 244454, 257320, 279376, 284890, 288610, 329840, 349220, 360248, 398846, 450310, 455824, 461776, 488908, 514640, 541291, 569780, 577220, 611135, 698440, 720496, 797692, 855589, 900620, 977816, 997115, 1082582, 1139560, 1154440, 1222270, 1395961, 1396880, 1595384, 1711178, 1801240, 1955632, 1994230, 2165164, 2279120, 2308880, 2444540, 2706455, 2791922, 3190768, 3422356, 3602480, 3789037, 3988460, 4277945, 4330328, 4889080, 5412910, 5583844, 6844712, 6979805, 7578074, 7976920, 8555890, 8660656, 9778160, 10825820, 11167688, 13689424, 13959610, 15156148, 15953840, 17111780, 18945185, 21651640, 22335376, 26523259, 27919220, 30312296, 34223560, 37890370, 43303280, 53046518, 55838440, 60624592, 68447120, 75780740, 106093036, 111676880, 132616295, 151561480, 212186072, 265232590, 303122960, 424372144, 530465180, 1060930360, 2121860720]

約数ペア:

[(1, 2121860720), (2, 1060930360), (4, 530465180), (5, 424372144), (7, 303122960), (8, 265232590), (10, 212186072), (14, 151561480), (16, 132616295), (19, 111676880), (20, 106093036), (28, 75780740), (31, 68447120), (35, 60624592), (38, 55838440), (40, 53046518), (49, 43303280), (56, 37890370), (62, 34223560), (70, 30312296), (76, 27919220), (80, 26523259), (95, 22335376), (98, 21651640), (112, 18945185), (124, 17111780), (133, 15953840), (140, 15156148), (152, 13959610), (155, 13689424), (190, 11167688), (196, 10825820), (217, 9778160), (245, 8660656), (248, 8555890), (266, 7976920), (280, 7578074), (304, 6979805), (310, 6844712), (380, 5583844), (392, 5412910), (434, 4889080), (490, 4330328), (496, 4277945), (532, 3988460), (560, 3789037), (589, 3602480), (620, 3422356), (665, 3190768), (760, 2791922), (784, 2706455), (868, 2444540), (919, 2308880), (931, 2279120), (980, 2165164), (1064, 1994230), (1085, 1955632), (1178, 1801240), (1240, 1711178), (1330, 1595384), (1519, 1396880), (1520, 1395961), (1736, 1222270), (1838, 1154440), (1862, 1139560), (1960, 1082582), (2128, 997115), (2170, 977816), (2356, 900620), (2480, 855589), (2660, 797692), (2945, 720496), (3038, 698440), (3472, 611135), (3676, 577220), (3724, 569780), (3920, 541291), (4123, 514640), (4340, 488908), (4595, 461776), (4655, 455824), (4712, 450310), (5320, 398846), (5890, 360248), (6076, 349220), (6433, 329840), (7352, 288610), (7448, 284890), (7595, 279376), (8246, 257320), (8680, 244454), (9190, 230888), (9310, 227912), (9424, 225155), (10640, 199423), (11780, 180124), (12152, 174610), (12866, 164920), (14704, 144305), (14896, 142445), (15190, 139688), (16492, 128660), (17360, 122227), (17461, 121520), (18380, 115444), (18620, 113956), (20615, 102928), (23560, 90062), (24304, 87305), (25732, 82460), (28489, 74480), (28861, 73520), (30380, 69844), (32165, 65968), (32984, 64330), (34922, 60760), (36760, 57722), (37240, 56978), (41230, 51464), (45031, 47120)]