71312605

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:230

約数の個数: 64

約数和(自身を含む): 113379840

約数和(自身を除く): 42067235

約数列:

[1, 5, 7, 13, 19, 35, 65, 73, 91, 95, 113, 133, 247, 365, 455, 511, 565, 665, 791, 949, 1235, 1387, 1469, 1729, 2147, 2555, 3955, 4745, 6643, 6935, 7345, 8249, 8645, 9709, 10283, 10735, 15029, 18031, 27911, 33215, 41245, 48545, 51415, 57743, 75145, 90155, 107237, 126217, 139555, 156731, 195377, 288715, 536185, 631085, 750659, 783655, 976885, 1097117, 2037503, 3753295, 5485585, 10187515, 14262521, 71312605]

約数ペア:

[(1, 71312605), (5, 14262521), (7, 10187515), (13, 5485585), (19, 3753295), (35, 2037503), (65, 1097117), (73, 976885), (91, 783655), (95, 750659), (113, 631085), (133, 536185), (247, 288715), (365, 195377), (455, 156731), (511, 139555), (565, 126217), (665, 107237), (791, 90155), (949, 75145), (1235, 57743), (1387, 51415), (1469, 48545), (1729, 41245), (2147, 33215), (2555, 27911), (3955, 18031), (4745, 15029), (6643, 10735), (6935, 10283), (7345, 9709), (8249, 8645)]