164257840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{619}}^1$

素因数の和:770

約数の個数: 80

約数和(自身を含む): 398545920

約数和(自身を除く): 234288080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 107, 124, 155, 214, 248, 310, 428, 496, 535, 619, 620, 856, 1070, 1238, 1240, 1712, 2140, 2476, 2480, 3095, 3317, 4280, 4952, 6190, 6634, 8560, 9904, 12380, 13268, 16585, 19189, 24760, 26536, 33170, 38378, 49520, 53072, 66233, 66340, 76756, 95945, 132466, 132680, 153512, 191890, 264932, 265360, 307024, 331165, 383780, 529864, 662330, 767560, 1059728, 1324660, 1535120, 2053223, 2649320, 4106446, 5298640, 8212892, 10266115, 16425784, 20532230, 32851568, 41064460, 82128920, 164257840]

約数ペア:

[(1, 164257840), (2, 82128920), (4, 41064460), (5, 32851568), (8, 20532230), (10, 16425784), (16, 10266115), (20, 8212892), (31, 5298640), (40, 4106446), (62, 2649320), (80, 2053223), (107, 1535120), (124, 1324660), (155, 1059728), (214, 767560), (248, 662330), (310, 529864), (428, 383780), (496, 331165), (535, 307024), (619, 265360), (620, 264932), (856, 191890), (1070, 153512), (1238, 132680), (1240, 132466), (1712, 95945), (2140, 76756), (2476, 66340), (2480, 66233), (3095, 53072), (3317, 49520), (4280, 38378), (4952, 33170), (6190, 26536), (6634, 24760), (8560, 19189), (9904, 16585), (12380, 13268)]