20100771850

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{83423}}^1$

素因数の和:83575

約数の個数: 48

約数和(自身を含む): 38481822720

約数和(自身を除く): 18381050870

約数列:

[1, 2, 5, 10, 25, 50, 61, 79, 122, 158, 305, 395, 610, 790, 1525, 1975, 3050, 3950, 4819, 9638, 24095, 48190, 83423, 120475, 166846, 240950, 417115, 834230, 2085575, 4171150, 5088803, 6590417, 10177606, 13180834, 25444015, 32952085, 50888030, 65904170, 127220075, 164760425, 254440150, 329520850, 402015437, 804030874, 2010077185, 4020154370, 10050385925, 20100771850]

約数ペア:

[(1, 20100771850), (2, 10050385925), (5, 4020154370), (10, 2010077185), (25, 804030874), (50, 402015437), (61, 329520850), (79, 254440150), (122, 164760425), (158, 127220075), (305, 65904170), (395, 50888030), (610, 32952085), (790, 25444015), (1525, 13180834), (1975, 10177606), (3050, 6590417), (3950, 5088803), (4819, 4171150), (9638, 2085575), (24095, 834230), (48190, 417115), (83423, 240950), (120475, 166846)]