18940872

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{569}}^1$

素因数の和:670

約数の個数: 64

約数和(自身を含む): 50616000

約数和(自身を除く): 31675128

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 73, 76, 114, 146, 152, 219, 228, 292, 438, 456, 569, 584, 876, 1138, 1387, 1707, 1752, 2276, 2774, 3414, 4161, 4552, 5548, 6828, 8322, 10811, 11096, 13656, 16644, 21622, 32433, 33288, 41537, 43244, 64866, 83074, 86488, 124611, 129732, 166148, 249222, 259464, 332296, 498444, 789203, 996888, 1578406, 2367609, 3156812, 4735218, 6313624, 9470436, 18940872]

約数ペア:

[(1, 18940872), (2, 9470436), (3, 6313624), (4, 4735218), (6, 3156812), (8, 2367609), (12, 1578406), (19, 996888), (24, 789203), (38, 498444), (57, 332296), (73, 259464), (76, 249222), (114, 166148), (146, 129732), (152, 124611), (219, 86488), (228, 83074), (292, 64866), (438, 43244), (456, 41537), (569, 33288), (584, 32433), (876, 21622), (1138, 16644), (1387, 13656), (1707, 11096), (1752, 10811), (2276, 8322), (2774, 6828), (3414, 5548), (4161, 4552)]