81236844

素因数分解:

$2^2\times 3^6\times {\mathrm{13}}^1\times {\mathrm{2143}}^1$

素因数の和:2178

約数の個数: 84

約数和(自身を含む): 229652416

約数和(自身を除く): 148415572

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 729, 972, 1053, 1404, 1458, 2106, 2143, 2916, 3159, 4212, 4286, 6318, 6429, 8572, 9477, 12636, 12858, 18954, 19287, 25716, 27859, 37908, 38574, 55718, 57861, 77148, 83577, 111436, 115722, 167154, 173583, 231444, 250731, 334308, 347166, 501462, 520749, 694332, 752193, 1002924, 1041498, 1504386, 1562247, 2082996, 2256579, 3008772, 3124494, 4513158, 6248988, 6769737, 9026316, 13539474, 20309211, 27078948, 40618422, 81236844]

約数ペア:

[(1, 81236844), (2, 40618422), (3, 27078948), (4, 20309211), (6, 13539474), (9, 9026316), (12, 6769737), (13, 6248988), (18, 4513158), (26, 3124494), (27, 3008772), (36, 2256579), (39, 2082996), (52, 1562247), (54, 1504386), (78, 1041498), (81, 1002924), (108, 752193), (117, 694332), (156, 520749), (162, 501462), (234, 347166), (243, 334308), (324, 250731), (351, 231444), (468, 173583), (486, 167154), (702, 115722), (729, 111436), (972, 83577), (1053, 77148), (1404, 57861), (1458, 55718), (2106, 38574), (2143, 37908), (2916, 27859), (3159, 25716), (4212, 19287), (4286, 18954), (6318, 12858), (6429, 12636), (8572, 9477)]