13457840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{373}}^1$

素因数の和:438

約数の個数: 80

約数和(自身を含む): 35060256

約数和(自身を除く): 21602416

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 80, 82, 88, 110, 164, 176, 205, 220, 328, 373, 410, 440, 451, 656, 746, 820, 880, 902, 1492, 1640, 1804, 1865, 2255, 2984, 3280, 3608, 3730, 4103, 4510, 5968, 7216, 7460, 8206, 9020, 14920, 15293, 16412, 18040, 20515, 29840, 30586, 32824, 36080, 41030, 61172, 65648, 76465, 82060, 122344, 152930, 164120, 168223, 244688, 305860, 328240, 336446, 611720, 672892, 841115, 1223440, 1345784, 1682230, 2691568, 3364460, 6728920, 13457840]

約数ペア:

[(1, 13457840), (2, 6728920), (4, 3364460), (5, 2691568), (8, 1682230), (10, 1345784), (11, 1223440), (16, 841115), (20, 672892), (22, 611720), (40, 336446), (41, 328240), (44, 305860), (55, 244688), (80, 168223), (82, 164120), (88, 152930), (110, 122344), (164, 82060), (176, 76465), (205, 65648), (220, 61172), (328, 41030), (373, 36080), (410, 32824), (440, 30586), (451, 29840), (656, 20515), (746, 18040), (820, 16412), (880, 15293), (902, 14920), (1492, 9020), (1640, 8206), (1804, 7460), (1865, 7216), (2255, 5968), (2984, 4510), (3280, 4103), (3608, 3730)]