2017944920

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{373}}^1\times {\mathrm{641}}^1$

素因数の和:1236

約数の個数: 64

約数和(自身を含む): 4581260640

約数和(自身を除く): 2563315720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 373, 422, 641, 746, 844, 1055, 1282, 1492, 1688, 1865, 2110, 2564, 2984, 3205, 3730, 4220, 5128, 6410, 7460, 8440, 12820, 14920, 25640, 78703, 135251, 157406, 239093, 270502, 314812, 393515, 478186, 541004, 629624, 676255, 787030, 956372, 1082008, 1195465, 1352510, 1574060, 1912744, 2390930, 2705020, 3148120, 4781860, 5410040, 9563720, 50448623, 100897246, 201794492, 252243115, 403588984, 504486230, 1008972460, 2017944920]

約数ペア:

[(1, 2017944920), (2, 1008972460), (4, 504486230), (5, 403588984), (8, 252243115), (10, 201794492), (20, 100897246), (40, 50448623), (211, 9563720), (373, 5410040), (422, 4781860), (641, 3148120), (746, 2705020), (844, 2390930), (1055, 1912744), (1282, 1574060), (1492, 1352510), (1688, 1195465), (1865, 1082008), (2110, 956372), (2564, 787030), (2984, 676255), (3205, 629624), (3730, 541004), (4220, 478186), (5128, 393515), (6410, 314812), (7460, 270502), (8440, 239093), (12820, 157406), (14920, 135251), (25640, 78703)]