278507090

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:443

約数の個数: 64

約数和(自身を含む): 546715008

約数和(自身を除く): 268207918

約数列:

[1, 2, 5, 10, 17, 34, 61, 85, 107, 122, 170, 214, 251, 305, 502, 535, 610, 1037, 1070, 1255, 1819, 2074, 2510, 3638, 4267, 5185, 6527, 8534, 9095, 10370, 13054, 15311, 18190, 21335, 26857, 30622, 32635, 42670, 53714, 65270, 76555, 110959, 134285, 153110, 221918, 260287, 268570, 456569, 520574, 554795, 913138, 1109590, 1301435, 1638277, 2282845, 2602870, 3276554, 4565690, 8191385, 16382770, 27850709, 55701418, 139253545, 278507090]

約数ペア:

[(1, 278507090), (2, 139253545), (5, 55701418), (10, 27850709), (17, 16382770), (34, 8191385), (61, 4565690), (85, 3276554), (107, 2602870), (122, 2282845), (170, 1638277), (214, 1301435), (251, 1109590), (305, 913138), (502, 554795), (535, 520574), (610, 456569), (1037, 268570), (1070, 260287), (1255, 221918), (1819, 153110), (2074, 134285), (2510, 110959), (3638, 76555), (4267, 65270), (5185, 53714), (6527, 42670), (8534, 32635), (9095, 30622), (10370, 26857), (13054, 21335), (15311, 18190)]