20611656

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1$

素因数の和:124

約数の個数: 144

約数和(自身を含む): 64488060

約数和(自身を除く): 43876404

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 19, 24, 26, 36, 38, 39, 52, 57, 61, 72, 76, 78, 104, 114, 117, 122, 152, 156, 171, 183, 228, 234, 244, 247, 312, 342, 361, 366, 456, 468, 488, 494, 549, 684, 722, 732, 741, 793, 936, 988, 1083, 1098, 1159, 1368, 1444, 1464, 1482, 1586, 1976, 2166, 2196, 2223, 2318, 2379, 2888, 2964, 3172, 3249, 3477, 4332, 4392, 4446, 4636, 4693, 4758, 5928, 6344, 6498, 6954, 7137, 8664, 8892, 9272, 9386, 9516, 10431, 12996, 13908, 14079, 14274, 15067, 17784, 18772, 19032, 20862, 22021, 25992, 27816, 28158, 28548, 30134, 37544, 41724, 42237, 44042, 45201, 56316, 57096, 60268, 66063, 83448, 84474, 88084, 90402, 112632, 120536, 132126, 135603, 168948, 176168, 180804, 198189, 264252, 271206, 286273, 337896, 361608, 396378, 528504, 542412, 572546, 792756, 858819, 1084824, 1145092, 1585512, 1717638, 2290184, 2576457, 3435276, 5152914, 6870552, 10305828, 20611656]

約数ペア:

[(1, 20611656), (2, 10305828), (3, 6870552), (4, 5152914), (6, 3435276), (8, 2576457), (9, 2290184), (12, 1717638), (13, 1585512), (18, 1145092), (19, 1084824), (24, 858819), (26, 792756), (36, 572546), (38, 542412), (39, 528504), (52, 396378), (57, 361608), (61, 337896), (72, 286273), (76, 271206), (78, 264252), (104, 198189), (114, 180804), (117, 176168), (122, 168948), (152, 135603), (156, 132126), (171, 120536), (183, 112632), (228, 90402), (234, 88084), (244, 84474), (247, 83448), (312, 66063), (342, 60268), (361, 57096), (366, 56316), (456, 45201), (468, 44042), (488, 42237), (494, 41724), (549, 37544), (684, 30134), (722, 28548), (732, 28158), (741, 27816), (793, 25992), (936, 22021), (988, 20862), (1083, 19032), (1098, 18772), (1159, 17784), (1368, 15067), (1444, 14274), (1464, 14079), (1482, 13908), (1586, 12996), (1976, 10431), (2166, 9516), (2196, 9386), (2223, 9272), (2318, 8892), (2379, 8664), (2888, 7137), (2964, 6954), (3172, 6498), (3249, 6344), (3477, 5928), (4332, 4758), (4392, 4693), (4446, 4636)]