20619464

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:174

約数の個数: 64

約数和(自身を含む): 42854400

約数和(自身を除く): 22234936

約数列:

[1, 2, 4, 8, 29, 31, 47, 58, 61, 62, 94, 116, 122, 124, 188, 232, 244, 248, 376, 488, 899, 1363, 1457, 1769, 1798, 1891, 2726, 2867, 2914, 3538, 3596, 3782, 5452, 5734, 5828, 7076, 7192, 7564, 10904, 11468, 11656, 14152, 15128, 22936, 42253, 54839, 83143, 84506, 88877, 109678, 166286, 169012, 177754, 219356, 332572, 338024, 355508, 438712, 665144, 711016, 2577433, 5154866, 10309732, 20619464]

約数ペア:

[(1, 20619464), (2, 10309732), (4, 5154866), (8, 2577433), (29, 711016), (31, 665144), (47, 438712), (58, 355508), (61, 338024), (62, 332572), (94, 219356), (116, 177754), (122, 169012), (124, 166286), (188, 109678), (232, 88877), (244, 84506), (248, 83143), (376, 54839), (488, 42253), (899, 22936), (1363, 15128), (1457, 14152), (1769, 11656), (1798, 11468), (1891, 10904), (2726, 7564), (2867, 7192), (2914, 7076), (3538, 5828), (3596, 5734), (3782, 5452)]