20123992952

素因数分解:

$2^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1\times {\mathrm{13109}}^1$

素因数の和:13548

約数の個数: 64

約数和(自身を含む): 43797888000

約数和(自身を除く): 23673895048

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 79, 158, 316, 347, 553, 632, 694, 1106, 1388, 2212, 2429, 2776, 4424, 4858, 9716, 13109, 19432, 26218, 27413, 52436, 54826, 91763, 104872, 109652, 183526, 191891, 219304, 367052, 383782, 734104, 767564, 1035611, 1535128, 2071222, 4142444, 4548823, 7249277, 8284888, 9097646, 14498554, 18195292, 28997108, 31841761, 36390584, 57994216, 63683522, 127367044, 254734088, 359357017, 718714034, 1437428068, 2515499119, 2874856136, 5030998238, 10061996476, 20123992952]

約数ペア:

[(1, 20123992952), (2, 10061996476), (4, 5030998238), (7, 2874856136), (8, 2515499119), (14, 1437428068), (28, 718714034), (56, 359357017), (79, 254734088), (158, 127367044), (316, 63683522), (347, 57994216), (553, 36390584), (632, 31841761), (694, 28997108), (1106, 18195292), (1388, 14498554), (2212, 9097646), (2429, 8284888), (2776, 7249277), (4424, 4548823), (4858, 4142444), (9716, 2071222), (13109, 1535128), (19432, 1035611), (26218, 767564), (27413, 734104), (52436, 383782), (54826, 367052), (91763, 219304), (104872, 191891), (109652, 183526)]