81461180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{1583}}^1$

素因数の和:1706

約数の個数: 48

約数和(自身を含む): 178827264

約数和(自身を除く): 97366084

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 166, 310, 332, 415, 620, 830, 1583, 1660, 2573, 3166, 5146, 6332, 7915, 10292, 12865, 15830, 25730, 31660, 49073, 51460, 98146, 131389, 196292, 245365, 262778, 490730, 525556, 656945, 981460, 1313890, 2627780, 4073059, 8146118, 16292236, 20365295, 40730590, 81461180]

約数ペア:

[(1, 81461180), (2, 40730590), (4, 20365295), (5, 16292236), (10, 8146118), (20, 4073059), (31, 2627780), (62, 1313890), (83, 981460), (124, 656945), (155, 525556), (166, 490730), (310, 262778), (332, 245365), (415, 196292), (620, 131389), (830, 98146), (1583, 51460), (1660, 49073), (2573, 31660), (3166, 25730), (5146, 15830), (6332, 12865), (7915, 10292)]