138850005

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{881}}^1$

素因数の和:994

約数の個数: 64

約数和(自身を含む): 270950400

約数和(自身を除く): 132100395

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 79, 95, 105, 133, 237, 285, 395, 399, 553, 665, 881, 1185, 1501, 1659, 1995, 2643, 2765, 4405, 4503, 6167, 7505, 8295, 10507, 13215, 16739, 18501, 22515, 30835, 31521, 50217, 52535, 69599, 83695, 92505, 117173, 157605, 208797, 251085, 347995, 351519, 487193, 585865, 1043985, 1322381, 1461579, 1757595, 2435965, 3967143, 6611905, 7307895, 9256667, 19835715, 27770001, 46283335, 138850005]

約数ペア:

[(1, 138850005), (3, 46283335), (5, 27770001), (7, 19835715), (15, 9256667), (19, 7307895), (21, 6611905), (35, 3967143), (57, 2435965), (79, 1757595), (95, 1461579), (105, 1322381), (133, 1043985), (237, 585865), (285, 487193), (395, 351519), (399, 347995), (553, 251085), (665, 208797), (881, 157605), (1185, 117173), (1501, 92505), (1659, 83695), (1995, 69599), (2643, 52535), (2765, 50217), (4405, 31521), (4503, 30835), (6167, 22515), (7505, 18501), (8295, 16739), (10507, 13215)]