177398980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{13219}}^1$

素因数の和:13300

約数の個数: 48

約数和(自身を含む): 413098560

約数和(自身を除く): 235699580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 2684, 3355, 6710, 13219, 13420, 26438, 52876, 66095, 132190, 145409, 264380, 290818, 581636, 727045, 806359, 1454090, 1612718, 2908180, 3225436, 4031795, 8063590, 8869949, 16127180, 17739898, 35479796, 44349745, 88699490, 177398980]

約数ペア:

[(1, 177398980), (2, 88699490), (4, 44349745), (5, 35479796), (10, 17739898), (11, 16127180), (20, 8869949), (22, 8063590), (44, 4031795), (55, 3225436), (61, 2908180), (110, 1612718), (122, 1454090), (220, 806359), (244, 727045), (305, 581636), (610, 290818), (671, 264380), (1220, 145409), (1342, 132190), (2684, 66095), (3355, 52876), (6710, 26438), (13219, 13420)]