197979640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{2383}}^1$

素因数の和:2492

約数の個数: 64

約数和(自身を含む): 466882560

約数和(自身を除く): 268902920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 67, 124, 134, 155, 248, 268, 310, 335, 536, 620, 670, 1240, 1340, 2077, 2383, 2680, 4154, 4766, 8308, 9532, 10385, 11915, 16616, 19064, 20770, 23830, 41540, 47660, 73873, 83080, 95320, 147746, 159661, 295492, 319322, 369365, 590984, 638644, 738730, 798305, 1277288, 1477460, 1596610, 2954920, 3193220, 4949491, 6386440, 9898982, 19797964, 24747455, 39595928, 49494910, 98989820, 197979640]

約数ペア:

[(1, 197979640), (2, 98989820), (4, 49494910), (5, 39595928), (8, 24747455), (10, 19797964), (20, 9898982), (31, 6386440), (40, 4949491), (62, 3193220), (67, 2954920), (124, 1596610), (134, 1477460), (155, 1277288), (248, 798305), (268, 738730), (310, 638644), (335, 590984), (536, 369365), (620, 319322), (670, 295492), (1240, 159661), (1340, 147746), (2077, 95320), (2383, 83080), (2680, 73873), (4154, 47660), (4766, 41540), (8308, 23830), (9532, 20770), (10385, 19064), (11915, 16616)]