12451820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{691}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 28250208

約数和(自身を除く): 15798388

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 170, 212, 265, 340, 530, 691, 901, 1060, 1382, 1802, 2764, 3455, 3604, 4505, 6910, 9010, 11747, 13820, 18020, 23494, 36623, 46988, 58735, 73246, 117470, 146492, 183115, 234940, 366230, 622591, 732460, 1245182, 2490364, 3112955, 6225910, 12451820]

約数ペア:

[(1, 12451820), (2, 6225910), (4, 3112955), (5, 2490364), (10, 1245182), (17, 732460), (20, 622591), (34, 366230), (53, 234940), (68, 183115), (85, 146492), (106, 117470), (170, 73246), (212, 58735), (265, 46988), (340, 36623), (530, 23494), (691, 18020), (901, 13820), (1060, 11747), (1382, 9010), (1802, 6910), (2764, 4505), (3455, 3604)]