51521210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 104055840

約数和(自身を除く): 52534630

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 73, 89, 122, 130, 146, 178, 305, 365, 445, 610, 730, 793, 890, 949, 1157, 1586, 1898, 2314, 3965, 4453, 4745, 5429, 5785, 6497, 7930, 8906, 9490, 10858, 11570, 12994, 22265, 27145, 32485, 44530, 54290, 57889, 64970, 70577, 84461, 115778, 141154, 168922, 289445, 352885, 396317, 422305, 578890, 705770, 792634, 844610, 1981585, 3963170, 5152121, 10304242, 25760605, 51521210]

約数ペア:

[(1, 51521210), (2, 25760605), (5, 10304242), (10, 5152121), (13, 3963170), (26, 1981585), (61, 844610), (65, 792634), (73, 705770), (89, 578890), (122, 422305), (130, 396317), (146, 352885), (178, 289445), (305, 168922), (365, 141154), (445, 115778), (610, 84461), (730, 70577), (793, 64970), (890, 57889), (949, 54290), (1157, 44530), (1586, 32485), (1898, 27145), (2314, 22265), (3965, 12994), (4453, 11570), (4745, 10858), (5429, 9490), (5785, 8906), (6497, 7930)]