72221955

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{16103}}^1$

素因数の和:16147

約数の個数: 32

約数和(自身を含む): 129862656

約数和(自身を除く): 57640701

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 16103, 48309, 80515, 209339, 241545, 370369, 628017, 1046695, 1111107, 1851845, 3140085, 4814797, 5555535, 14444391, 24073985, 72221955]

約数ペア:

[(1, 72221955), (3, 24073985), (5, 14444391), (13, 5555535), (15, 4814797), (23, 3140085), (39, 1851845), (65, 1111107), (69, 1046695), (115, 628017), (195, 370369), (299, 241545), (345, 209339), (897, 80515), (1495, 48309), (4485, 16103)]