82770400

素因数分解:

$2^5\times 5^2\times {\mathrm{157}}^1\times {\mathrm{659}}^1$

素因数の和:836

約数の個数: 72

約数和(自身を含む): 203658840

約数和(自身を除く): 120888440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 157, 160, 200, 314, 400, 628, 659, 785, 800, 1256, 1318, 1570, 2512, 2636, 3140, 3295, 3925, 5024, 5272, 6280, 6590, 7850, 10544, 12560, 13180, 15700, 16475, 21088, 25120, 26360, 31400, 32950, 52720, 62800, 65900, 103463, 105440, 125600, 131800, 206926, 263600, 413852, 517315, 527200, 827704, 1034630, 1655408, 2069260, 2586575, 3310816, 4138520, 5173150, 8277040, 10346300, 16554080, 20692600, 41385200, 82770400]

約数ペア:

[(1, 82770400), (2, 41385200), (4, 20692600), (5, 16554080), (8, 10346300), (10, 8277040), (16, 5173150), (20, 4138520), (25, 3310816), (32, 2586575), (40, 2069260), (50, 1655408), (80, 1034630), (100, 827704), (157, 527200), (160, 517315), (200, 413852), (314, 263600), (400, 206926), (628, 131800), (659, 125600), (785, 105440), (800, 103463), (1256, 65900), (1318, 62800), (1570, 52720), (2512, 32950), (2636, 31400), (3140, 26360), (3295, 25120), (3925, 21088), (5024, 16475), (5272, 15700), (6280, 13180), (6590, 12560), (7850, 10544)]