215530960

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{509}}^1$

素因数の和:668

約数の個数: 80

約数和(自身を含む): 516038400

約数和(自身を除く): 300507440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 79, 80, 134, 158, 268, 316, 335, 395, 509, 536, 632, 670, 790, 1018, 1072, 1264, 1340, 1580, 2036, 2545, 2680, 3160, 4072, 5090, 5293, 5360, 6320, 8144, 10180, 10586, 20360, 21172, 26465, 34103, 40211, 40720, 42344, 52930, 68206, 80422, 84688, 105860, 136412, 160844, 170515, 201055, 211720, 272824, 321688, 341030, 402110, 423440, 545648, 643376, 682060, 804220, 1364120, 1608440, 2694137, 2728240, 3216880, 5388274, 10776548, 13470685, 21553096, 26941370, 43106192, 53882740, 107765480, 215530960]

約数ペア:

[(1, 215530960), (2, 107765480), (4, 53882740), (5, 43106192), (8, 26941370), (10, 21553096), (16, 13470685), (20, 10776548), (40, 5388274), (67, 3216880), (79, 2728240), (80, 2694137), (134, 1608440), (158, 1364120), (268, 804220), (316, 682060), (335, 643376), (395, 545648), (509, 423440), (536, 402110), (632, 341030), (670, 321688), (790, 272824), (1018, 211720), (1072, 201055), (1264, 170515), (1340, 160844), (1580, 136412), (2036, 105860), (2545, 84688), (2680, 80422), (3160, 68206), (4072, 52930), (5090, 42344), (5293, 40720), (5360, 40211), (6320, 34103), (8144, 26465), (10180, 21172), (10586, 20360)]