81503748

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1423}}^1$

素因数の和:1513

約数の個数: 72

約数和(自身を含む): 216664448

約数和(自身を除く): 135160700

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 43, 74, 86, 111, 129, 148, 172, 222, 258, 333, 387, 444, 516, 666, 774, 1332, 1423, 1548, 1591, 2846, 3182, 4269, 4773, 5692, 6364, 8538, 9546, 12807, 14319, 17076, 19092, 25614, 28638, 51228, 52651, 57276, 61189, 105302, 122378, 157953, 183567, 210604, 244756, 315906, 367134, 473859, 550701, 631812, 734268, 947718, 1101402, 1895436, 2202804, 2263993, 4527986, 6791979, 9055972, 13583958, 20375937, 27167916, 40751874, 81503748]

約数ペア:

[(1, 81503748), (2, 40751874), (3, 27167916), (4, 20375937), (6, 13583958), (9, 9055972), (12, 6791979), (18, 4527986), (36, 2263993), (37, 2202804), (43, 1895436), (74, 1101402), (86, 947718), (111, 734268), (129, 631812), (148, 550701), (172, 473859), (222, 367134), (258, 315906), (333, 244756), (387, 210604), (444, 183567), (516, 157953), (666, 122378), (774, 105302), (1332, 61189), (1423, 57276), (1548, 52651), (1591, 51228), (2846, 28638), (3182, 25614), (4269, 19092), (4773, 17076), (5692, 14319), (6364, 12807), (8538, 9546)]