247481505

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{2671}}^1$

素因数の和:2782

約数の個数: 48

約数和(自身を含む): 450178560

約数和(自身を除く): 202697055

約数列:

[1, 3, 5, 9, 15, 29, 45, 71, 87, 145, 213, 261, 355, 435, 639, 1065, 1305, 2059, 2671, 3195, 6177, 8013, 10295, 13355, 18531, 24039, 30885, 40065, 77459, 92655, 120195, 189641, 232377, 387295, 568923, 697131, 948205, 1161885, 1706769, 2844615, 3485655, 5499589, 8533845, 16498767, 27497945, 49496301, 82493835, 247481505]

約数ペア:

[(1, 247481505), (3, 82493835), (5, 49496301), (9, 27497945), (15, 16498767), (29, 8533845), (45, 5499589), (71, 3485655), (87, 2844615), (145, 1706769), (213, 1161885), (261, 948205), (355, 697131), (435, 568923), (639, 387295), (1065, 232377), (1305, 189641), (2059, 120195), (2671, 92655), (3195, 77459), (6177, 40065), (8013, 30885), (10295, 24039), (13355, 18531)]