20676636

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:128

約数の個数: 108

約数和(自身を含む): 57969912

約数和(自身を除く): 37293276

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 37, 38, 43, 57, 74, 76, 86, 111, 114, 129, 148, 171, 172, 222, 228, 258, 333, 342, 361, 387, 444, 516, 666, 684, 703, 722, 774, 817, 1083, 1332, 1406, 1444, 1548, 1591, 1634, 2109, 2166, 2451, 2812, 3182, 3249, 3268, 4218, 4332, 4773, 4902, 6327, 6364, 6498, 7353, 8436, 9546, 9804, 12654, 12996, 13357, 14319, 14706, 15523, 19092, 25308, 26714, 28638, 29412, 30229, 31046, 40071, 46569, 53428, 57276, 60458, 62092, 80142, 90687, 93138, 120213, 120916, 139707, 160284, 181374, 186276, 240426, 272061, 279414, 362748, 480852, 544122, 558828, 574351, 1088244, 1148702, 1723053, 2297404, 3446106, 5169159, 6892212, 10338318, 20676636]

約数ペア:

[(1, 20676636), (2, 10338318), (3, 6892212), (4, 5169159), (6, 3446106), (9, 2297404), (12, 1723053), (18, 1148702), (19, 1088244), (36, 574351), (37, 558828), (38, 544122), (43, 480852), (57, 362748), (74, 279414), (76, 272061), (86, 240426), (111, 186276), (114, 181374), (129, 160284), (148, 139707), (171, 120916), (172, 120213), (222, 93138), (228, 90687), (258, 80142), (333, 62092), (342, 60458), (361, 57276), (387, 53428), (444, 46569), (516, 40071), (666, 31046), (684, 30229), (703, 29412), (722, 28638), (774, 26714), (817, 25308), (1083, 19092), (1332, 15523), (1406, 14706), (1444, 14319), (1548, 13357), (1591, 12996), (1634, 12654), (2109, 9804), (2166, 9546), (2451, 8436), (2812, 7353), (3182, 6498), (3249, 6364), (3268, 6327), (4218, 4902), (4332, 4773)]