639344496

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61381}}^1$

素因数の和:61430

約数の個数: 80

約数和(自身を含む): 1948510208

約数和(自身を除く): 1309165712

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 42, 48, 56, 62, 84, 93, 112, 124, 168, 186, 217, 248, 336, 372, 434, 496, 651, 744, 868, 1302, 1488, 1736, 2604, 3472, 5208, 10416, 61381, 122762, 184143, 245524, 368286, 429667, 491048, 736572, 859334, 982096, 1289001, 1473144, 1718668, 1902811, 2578002, 2946288, 3437336, 3805622, 5156004, 5708433, 6874672, 7611244, 10312008, 11416866, 13319677, 15222488, 20624016, 22833732, 26639354, 30444976, 39959031, 45667464, 53278708, 79918062, 91334928, 106557416, 159836124, 213114832, 319672248, 639344496]

約数ペア:

[(1, 639344496), (2, 319672248), (3, 213114832), (4, 159836124), (6, 106557416), (7, 91334928), (8, 79918062), (12, 53278708), (14, 45667464), (16, 39959031), (21, 30444976), (24, 26639354), (28, 22833732), (31, 20624016), (42, 15222488), (48, 13319677), (56, 11416866), (62, 10312008), (84, 7611244), (93, 6874672), (112, 5708433), (124, 5156004), (168, 3805622), (186, 3437336), (217, 2946288), (248, 2578002), (336, 1902811), (372, 1718668), (434, 1473144), (496, 1289001), (651, 982096), (744, 859334), (868, 736572), (1302, 491048), (1488, 429667), (1736, 368286), (2604, 245524), (3472, 184143), (5208, 122762), (10416, 61381)]