1989903888

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21227}}^1$

素因数の和:21282

約数の個数: 160

約数和(自身を含む): 6738616320

約数和(自身を除く): 4748712432

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 31, 36, 42, 48, 54, 56, 62, 63, 72, 84, 93, 108, 112, 124, 126, 144, 168, 186, 189, 216, 217, 248, 252, 279, 336, 372, 378, 432, 434, 496, 504, 558, 651, 744, 756, 837, 868, 1008, 1116, 1302, 1488, 1512, 1674, 1736, 1953, 2232, 2604, 3024, 3348, 3472, 3906, 4464, 5208, 5859, 6696, 7812, 10416, 11718, 13392, 15624, 21227, 23436, 31248, 42454, 46872, 63681, 84908, 93744, 127362, 148589, 169816, 191043, 254724, 297178, 339632, 382086, 445767, 509448, 573129, 594356, 658037, 764172, 891534, 1018896, 1146258, 1188712, 1316074, 1337301, 1528344, 1783068, 1974111, 2292516, 2377424, 2632148, 2674602, 3056688, 3566136, 3948222, 4011903, 4585032, 4606259, 5264296, 5349204, 5922333, 7132272, 7896444, 8023806, 9170064, 9212518, 10528592, 10698408, 11844666, 13818777, 15792888, 16047612, 17766999, 18425036, 21396816, 23689332, 27637554, 31585776, 32095224, 35533998, 36850072, 41456331, 47378664, 55275108, 64190448, 71067996, 73700144, 82912662, 94757328, 110550216, 124368993, 142135992, 165825324, 221100432, 248737986, 284271984, 331650648, 497475972, 663301296, 994951944, 1989903888]

約数ペア:

[(1, 1989903888), (2, 994951944), (3, 663301296), (4, 497475972), (6, 331650648), (7, 284271984), (8, 248737986), (9, 221100432), (12, 165825324), (14, 142135992), (16, 124368993), (18, 110550216), (21, 94757328), (24, 82912662), (27, 73700144), (28, 71067996), (31, 64190448), (36, 55275108), (42, 47378664), (48, 41456331), (54, 36850072), (56, 35533998), (62, 32095224), (63, 31585776), (72, 27637554), (84, 23689332), (93, 21396816), (108, 18425036), (112, 17766999), (124, 16047612), (126, 15792888), (144, 13818777), (168, 11844666), (186, 10698408), (189, 10528592), (216, 9212518), (217, 9170064), (248, 8023806), (252, 7896444), (279, 7132272), (336, 5922333), (372, 5349204), (378, 5264296), (432, 4606259), (434, 4585032), (496, 4011903), (504, 3948222), (558, 3566136), (651, 3056688), (744, 2674602), (756, 2632148), (837, 2377424), (868, 2292516), (1008, 1974111), (1116, 1783068), (1302, 1528344), (1488, 1337301), (1512, 1316074), (1674, 1188712), (1736, 1146258), (1953, 1018896), (2232, 891534), (2604, 764172), (3024, 658037), (3348, 594356), (3472, 573129), (3906, 509448), (4464, 445767), (5208, 382086), (5859, 339632), (6696, 297178), (7812, 254724), (10416, 191043), (11718, 169816), (13392, 148589), (15624, 127362), (21227, 93744), (23436, 84908), (31248, 63681), (42454, 46872)]