208880503

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 245145600

約数和(自身を除く): 36265097

約数列:

[1, 13, 23, 37, 79, 239, 299, 481, 851, 1027, 1817, 2923, 3107, 5497, 8843, 11063, 18881, 23621, 37999, 67229, 71461, 114959, 203389, 245453, 434263, 698597, 873977, 2644057, 5645419, 9081761, 16067731, 208880503]

約数ペア:

[(1, 208880503), (13, 16067731), (23, 9081761), (37, 5645419), (79, 2644057), (239, 873977), (299, 698597), (481, 434263), (851, 245453), (1027, 203389), (1817, 114959), (2923, 71461), (3107, 67229), (5497, 37999), (8843, 23621), (11063, 18881)]