20005925968

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{34949}}^1$

素因数の和:35252

約数の個数: 80

約数和(自身を含む): 46805040000

約数和(自身を除く): 26799114032

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 269, 304, 532, 538, 1064, 1076, 1883, 2128, 2152, 3766, 4304, 5111, 7532, 10222, 15064, 20444, 30128, 34949, 35777, 40888, 69898, 71554, 81776, 139796, 143108, 244643, 279592, 286216, 489286, 559184, 572432, 664031, 978572, 1328062, 1957144, 2656124, 3914288, 4648217, 5312248, 9296434, 9401281, 10624496, 18592868, 18802562, 37185736, 37605124, 65808967, 74371472, 75210248, 131617934, 150420496, 178624339, 263235868, 357248678, 526471736, 714497356, 1052943472, 1250370373, 1428994712, 2500740746, 2857989424, 5001481492, 10002962984, 20005925968]

約数ペア:

[(1, 20005925968), (2, 10002962984), (4, 5001481492), (7, 2857989424), (8, 2500740746), (14, 1428994712), (16, 1250370373), (19, 1052943472), (28, 714497356), (38, 526471736), (56, 357248678), (76, 263235868), (112, 178624339), (133, 150420496), (152, 131617934), (266, 75210248), (269, 74371472), (304, 65808967), (532, 37605124), (538, 37185736), (1064, 18802562), (1076, 18592868), (1883, 10624496), (2128, 9401281), (2152, 9296434), (3766, 5312248), (4304, 4648217), (5111, 3914288), (7532, 2656124), (10222, 1957144), (15064, 1328062), (20444, 978572), (30128, 664031), (34949, 572432), (35777, 559184), (40888, 489286), (69898, 286216), (71554, 279592), (81776, 244643), (139796, 143108)]