638901816

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1831}}^1$

素因数の和:1945

約数の個数: 128

約数和(自身を含む): 1913487360

約数和(自身を除く): 1274585544

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 56, 62, 67, 84, 93, 124, 134, 168, 186, 201, 217, 248, 268, 372, 402, 434, 469, 536, 651, 744, 804, 868, 938, 1302, 1407, 1608, 1736, 1831, 1876, 2077, 2604, 2814, 3662, 3752, 4154, 5208, 5493, 5628, 6231, 7324, 8308, 10986, 11256, 12462, 12817, 14539, 14648, 16616, 21972, 24924, 25634, 29078, 38451, 43617, 43944, 49848, 51268, 56761, 58156, 76902, 87234, 102536, 113522, 116312, 122677, 153804, 170283, 174468, 227044, 245354, 307608, 340566, 348936, 368031, 397327, 454088, 490708, 681132, 736062, 794654, 858739, 981416, 1191981, 1362264, 1472124, 1589308, 1717478, 2383962, 2576217, 2944248, 3178616, 3434956, 3802987, 4767924, 5152434, 6869912, 7605974, 9535848, 10304868, 11408961, 15211948, 20609736, 22817922, 26620909, 30423896, 45635844, 53241818, 79862727, 91271688, 106483636, 159725454, 212967272, 319450908, 638901816]

約数ペア:

[(1, 638901816), (2, 319450908), (3, 212967272), (4, 159725454), (6, 106483636), (7, 91271688), (8, 79862727), (12, 53241818), (14, 45635844), (21, 30423896), (24, 26620909), (28, 22817922), (31, 20609736), (42, 15211948), (56, 11408961), (62, 10304868), (67, 9535848), (84, 7605974), (93, 6869912), (124, 5152434), (134, 4767924), (168, 3802987), (186, 3434956), (201, 3178616), (217, 2944248), (248, 2576217), (268, 2383962), (372, 1717478), (402, 1589308), (434, 1472124), (469, 1362264), (536, 1191981), (651, 981416), (744, 858739), (804, 794654), (868, 736062), (938, 681132), (1302, 490708), (1407, 454088), (1608, 397327), (1736, 368031), (1831, 348936), (1876, 340566), (2077, 307608), (2604, 245354), (2814, 227044), (3662, 174468), (3752, 170283), (4154, 153804), (5208, 122677), (5493, 116312), (5628, 113522), (6231, 102536), (7324, 87234), (8308, 76902), (10986, 58156), (11256, 56761), (12462, 51268), (12817, 49848), (14539, 43944), (14648, 43617), (16616, 38451), (21972, 29078), (24924, 25634)]