81402890

素因数分解:

$2^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1\times {\mathrm{491}}^1$

素因数の和:838

約数の個数: 32

約数和(自身を含む): 149843520

約数和(自身を除く): 68440630

約数列:

[1, 2, 5, 10, 59, 118, 281, 295, 491, 562, 590, 982, 1405, 2455, 2810, 4910, 16579, 28969, 33158, 57938, 82895, 137971, 144845, 165790, 275942, 289690, 689855, 1379710, 8140289, 16280578, 40701445, 81402890]

約数ペア:

[(1, 81402890), (2, 40701445), (5, 16280578), (10, 8140289), (59, 1379710), (118, 689855), (281, 289690), (295, 275942), (491, 165790), (562, 144845), (590, 137971), (982, 82895), (1405, 57938), (2455, 33158), (2810, 28969), (4910, 16579)]