81507055

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^2$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 124485120

約数和(自身を除く): 42978065

約数列:

[1, 5, 7, 19, 23, 35, 73, 95, 115, 133, 161, 365, 437, 511, 665, 805, 1387, 1679, 2185, 2555, 3059, 5329, 6935, 8395, 9709, 11753, 15295, 26645, 31901, 37303, 48545, 58765, 101251, 122567, 159505, 186515, 223307, 506255, 612835, 708757, 857969, 1116535, 2328773, 3543785, 4289845, 11643865, 16301411, 81507055]

約数ペア:

[(1, 81507055), (5, 16301411), (7, 11643865), (19, 4289845), (23, 3543785), (35, 2328773), (73, 1116535), (95, 857969), (115, 708757), (133, 612835), (161, 506255), (365, 223307), (437, 186515), (511, 159505), (665, 122567), (805, 101251), (1387, 58765), (1679, 48545), (2185, 37303), (2555, 31901), (3059, 26645), (5329, 15295), (6935, 11753), (8395, 9709)]