245106771

素因数分解:

$3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:361

約数の個数: 64

約数和(自身を含む): 417715200

約数和(自身を除く): 172608429

約数列:

[1, 3, 7, 13, 21, 39, 49, 73, 91, 147, 219, 251, 273, 343, 511, 637, 753, 949, 1029, 1533, 1757, 1911, 2847, 3263, 3577, 4459, 5271, 6643, 9789, 10731, 12299, 13377, 18323, 19929, 22841, 25039, 36897, 46501, 54969, 68523, 75117, 86093, 128261, 139503, 159887, 238199, 258279, 325507, 384783, 479661, 714597, 897827, 976521, 1119209, 1667393, 2693481, 3357627, 5002179, 6284789, 11671751, 18854367, 35015253, 81702257, 245106771]

約数ペア:

[(1, 245106771), (3, 81702257), (7, 35015253), (13, 18854367), (21, 11671751), (39, 6284789), (49, 5002179), (73, 3357627), (91, 2693481), (147, 1667393), (219, 1119209), (251, 976521), (273, 897827), (343, 714597), (511, 479661), (637, 384783), (753, 325507), (949, 258279), (1029, 238199), (1533, 159887), (1757, 139503), (1911, 128261), (2847, 86093), (3263, 75117), (3577, 68523), (4459, 54969), (5271, 46501), (6643, 36897), (9789, 25039), (10731, 22841), (12299, 19929), (13377, 18323)]