19535680

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1489}}^1$

素因数の和:1547

約数の個数: 56

約数和(自身を含む): 47685960

約数和(自身を除く): 28150280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 656, 820, 1312, 1489, 1640, 2624, 2978, 3280, 5956, 6560, 7445, 11912, 13120, 14890, 23824, 29780, 47648, 59560, 61049, 95296, 119120, 122098, 238240, 244196, 305245, 476480, 488392, 610490, 976784, 1220980, 1953568, 2441960, 3907136, 4883920, 9767840, 19535680]

約数ペア:

[(1, 19535680), (2, 9767840), (4, 4883920), (5, 3907136), (8, 2441960), (10, 1953568), (16, 1220980), (20, 976784), (32, 610490), (40, 488392), (41, 476480), (64, 305245), (80, 244196), (82, 238240), (160, 122098), (164, 119120), (205, 95296), (320, 61049), (328, 59560), (410, 47648), (656, 29780), (820, 23824), (1312, 14890), (1489, 13120), (1640, 11912), (2624, 7445), (2978, 6560), (3280, 5956)]