1654981840

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{397}}^1\times {\mathrm{487}}^1$

素因数の和:1004

約数の個数: 80

約数和(自身を含む): 3901571712

約数和(自身を除く): 2246589872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 397, 428, 487, 535, 794, 856, 974, 1070, 1588, 1712, 1948, 1985, 2140, 2435, 3176, 3896, 3970, 4280, 4870, 6352, 7792, 7940, 8560, 9740, 15880, 19480, 31760, 38960, 42479, 52109, 84958, 104218, 169916, 193339, 208436, 212395, 260545, 339832, 386678, 416872, 424790, 521090, 679664, 773356, 833744, 849580, 966695, 1042180, 1546712, 1699160, 1933390, 2084360, 3093424, 3398320, 3866780, 4168720, 7733560, 15467120, 20687273, 41374546, 82749092, 103436365, 165498184, 206872730, 330996368, 413745460, 827490920, 1654981840]

約数ペア:

[(1, 1654981840), (2, 827490920), (4, 413745460), (5, 330996368), (8, 206872730), (10, 165498184), (16, 103436365), (20, 82749092), (40, 41374546), (80, 20687273), (107, 15467120), (214, 7733560), (397, 4168720), (428, 3866780), (487, 3398320), (535, 3093424), (794, 2084360), (856, 1933390), (974, 1699160), (1070, 1546712), (1588, 1042180), (1712, 966695), (1948, 849580), (1985, 833744), (2140, 773356), (2435, 679664), (3176, 521090), (3896, 424790), (3970, 416872), (4280, 386678), (4870, 339832), (6352, 260545), (7792, 212395), (7940, 208436), (8560, 193339), (9740, 169916), (15880, 104218), (19480, 84958), (31760, 52109), (38960, 42479)]