80120450

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:423

約数の個数: 48

約数和(自身を含む): 153490920

約数和(自身を除く): 73370470

約数列:

[1, 2, 5, 10, 25, 50, 61, 109, 122, 218, 241, 305, 482, 545, 610, 1090, 1205, 1525, 2410, 2725, 3050, 5450, 6025, 6649, 12050, 13298, 14701, 26269, 29402, 33245, 52538, 66490, 73505, 131345, 147010, 166225, 262690, 332450, 367525, 656725, 735050, 1313450, 1602409, 3204818, 8012045, 16024090, 40060225, 80120450]

約数ペア:

[(1, 80120450), (2, 40060225), (5, 16024090), (10, 8012045), (25, 3204818), (50, 1602409), (61, 1313450), (109, 735050), (122, 656725), (218, 367525), (241, 332450), (305, 262690), (482, 166225), (545, 147010), (610, 131345), (1090, 73505), (1205, 66490), (1525, 52538), (2410, 33245), (2725, 29402), (3050, 26269), (5450, 14701), (6025, 13298), (6649, 12050)]