72604240

素因数分解:

$2^4\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1373}}^1$

素因数の和:2047

約数の個数: 40

約数和(自身を含む): 169183368

約数和(自身を除く): 96579128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 661, 1322, 1373, 2644, 2746, 3305, 5288, 5492, 6610, 6865, 10576, 10984, 13220, 13730, 21968, 26440, 27460, 52880, 54920, 109840, 907553, 1815106, 3630212, 4537765, 7260424, 9075530, 14520848, 18151060, 36302120, 72604240]

約数ペア:

[(1, 72604240), (2, 36302120), (4, 18151060), (5, 14520848), (8, 9075530), (10, 7260424), (16, 4537765), (20, 3630212), (40, 1815106), (80, 907553), (661, 109840), (1322, 54920), (1373, 52880), (2644, 27460), (2746, 26440), (3305, 21968), (5288, 13730), (5492, 13220), (6610, 10984), (6865, 10576)]