20956526390

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{283}}^1\times {\mathrm{1657}}^1$

素因数の和:2097

約数の個数: 64

約数和(自身を含む): 39157715520

約数和(自身を除く): 18201189130

約数列:

[1, 2, 5, 10, 41, 82, 109, 205, 218, 283, 410, 545, 566, 1090, 1415, 1657, 2830, 3314, 4469, 8285, 8938, 11603, 16570, 22345, 23206, 30847, 44690, 58015, 61694, 67937, 116030, 135874, 154235, 180613, 308470, 339685, 361226, 468931, 679370, 903065, 937862, 1264727, 1806130, 2344655, 2529454, 4689310, 6323635, 7405133, 12647270, 14810266, 19226171, 37025665, 38452342, 51113479, 74051330, 96130855, 102226958, 192261710, 255567395, 511134790, 2095652639, 4191305278, 10478263195, 20956526390]

約数ペア:

[(1, 20956526390), (2, 10478263195), (5, 4191305278), (10, 2095652639), (41, 511134790), (82, 255567395), (109, 192261710), (205, 102226958), (218, 96130855), (283, 74051330), (410, 51113479), (545, 38452342), (566, 37025665), (1090, 19226171), (1415, 14810266), (1657, 12647270), (2830, 7405133), (3314, 6323635), (4469, 4689310), (8285, 2529454), (8938, 2344655), (11603, 1806130), (16570, 1264727), (22345, 937862), (23206, 903065), (30847, 679370), (44690, 468931), (58015, 361226), (61694, 339685), (67937, 308470), (116030, 180613), (135874, 154235)]