990750824

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{2897}}^1$

素因数の和:3138

約数の個数: 64

約数和(自身を含む): 2203407360

約数和(自身を除く): 1212656536

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 197, 217, 248, 394, 434, 788, 868, 1379, 1576, 1736, 2758, 2897, 5516, 5794, 6107, 11032, 11588, 12214, 20279, 23176, 24428, 40558, 42749, 48856, 81116, 85498, 89807, 162232, 170996, 179614, 341992, 359228, 570709, 628649, 718456, 1141418, 1257298, 2282836, 2514596, 3994963, 4565672, 5029192, 7989926, 15979852, 17691979, 31959704, 35383958, 70767916, 123843853, 141535832, 247687706, 495375412, 990750824]

約数ペア:

[(1, 990750824), (2, 495375412), (4, 247687706), (7, 141535832), (8, 123843853), (14, 70767916), (28, 35383958), (31, 31959704), (56, 17691979), (62, 15979852), (124, 7989926), (197, 5029192), (217, 4565672), (248, 3994963), (394, 2514596), (434, 2282836), (788, 1257298), (868, 1141418), (1379, 718456), (1576, 628649), (1736, 570709), (2758, 359228), (2897, 341992), (5516, 179614), (5794, 170996), (6107, 162232), (11032, 89807), (11588, 85498), (12214, 81116), (20279, 48856), (23176, 42749), (24428, 40558)]