201009520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{823}}^1$

素因数の和:950

約数の個数: 80

約数和(自身を含む): 485540352

約数和(自身を除く): 284530832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 71, 80, 86, 142, 172, 215, 284, 344, 355, 430, 568, 688, 710, 823, 860, 1136, 1420, 1646, 1720, 2840, 3053, 3292, 3440, 4115, 5680, 6106, 6584, 8230, 12212, 13168, 15265, 16460, 24424, 30530, 32920, 35389, 48848, 58433, 61060, 65840, 70778, 116866, 122120, 141556, 176945, 233732, 244240, 283112, 292165, 353890, 467464, 566224, 584330, 707780, 934928, 1168660, 1415560, 2337320, 2512619, 2831120, 4674640, 5025238, 10050476, 12563095, 20100952, 25126190, 40201904, 50252380, 100504760, 201009520]

約数ペア:

[(1, 201009520), (2, 100504760), (4, 50252380), (5, 40201904), (8, 25126190), (10, 20100952), (16, 12563095), (20, 10050476), (40, 5025238), (43, 4674640), (71, 2831120), (80, 2512619), (86, 2337320), (142, 1415560), (172, 1168660), (215, 934928), (284, 707780), (344, 584330), (355, 566224), (430, 467464), (568, 353890), (688, 292165), (710, 283112), (823, 244240), (860, 233732), (1136, 176945), (1420, 141556), (1646, 122120), (1720, 116866), (2840, 70778), (3053, 65840), (3292, 61060), (3440, 58433), (4115, 48848), (5680, 35389), (6106, 32920), (6584, 30530), (8230, 24424), (12212, 16460), (13168, 15265)]