20123909912

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{977}}^1\times {\mathrm{1889}}^1$

素因数の和:2948

約数の個数: 64

約数和(自身を含む): 39925872000

約数和(自身を除く): 19801962088

約数列:

[1, 2, 4, 8, 29, 47, 58, 94, 116, 188, 232, 376, 977, 1363, 1889, 1954, 2726, 3778, 3908, 5452, 7556, 7816, 10904, 15112, 28333, 45919, 54781, 56666, 88783, 91838, 109562, 113332, 177566, 183676, 219124, 226664, 355132, 367352, 438248, 710264, 1331651, 1845553, 2574707, 2663302, 3691106, 5149414, 5326604, 7382212, 10298828, 10653208, 14764424, 20597656, 53521037, 86740991, 107042074, 173481982, 214084148, 346963964, 428168296, 693927928, 2515488739, 5030977478, 10061954956, 20123909912]

約数ペア:

[(1, 20123909912), (2, 10061954956), (4, 5030977478), (8, 2515488739), (29, 693927928), (47, 428168296), (58, 346963964), (94, 214084148), (116, 173481982), (188, 107042074), (232, 86740991), (376, 53521037), (977, 20597656), (1363, 14764424), (1889, 10653208), (1954, 10298828), (2726, 7382212), (3778, 5326604), (3908, 5149414), (5452, 3691106), (7556, 2663302), (7816, 2574707), (10904, 1845553), (15112, 1331651), (28333, 710264), (45919, 438248), (54781, 367352), (56666, 355132), (88783, 226664), (91838, 219124), (109562, 183676), (113332, 177566)]