81917520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{341323}}^1$

素因数の和:341339

約数の個数: 40

約数和(自身を含む): 253945056

約数和(自身を除く): 172027536

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 341323, 682646, 1023969, 1365292, 1706615, 2047938, 2730584, 3413230, 4095876, 5119845, 5461168, 6826460, 8191752, 10239690, 13652920, 16383504, 20479380, 27305840, 40958760, 81917520]

約数ペア:

[(1, 81917520), (2, 40958760), (3, 27305840), (4, 20479380), (5, 16383504), (6, 13652920), (8, 10239690), (10, 8191752), (12, 6826460), (15, 5461168), (16, 5119845), (20, 4095876), (24, 3413230), (30, 2730584), (40, 2047938), (48, 1706615), (60, 1365292), (80, 1023969), (120, 682646), (240, 341323)]