210005105156

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{991}}^1\times {\mathrm{688027}}^1$

素因数の和:689040

約数の個数: 48

約数和(自身を含む): 458655977472

約数和(自身を除く): 248650872316

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 991, 1982, 3964, 6937, 10901, 13874, 21802, 27748, 43604, 76307, 152614, 305228, 688027, 1376054, 2752108, 4816189, 7568297, 9632378, 15136594, 19264756, 30273188, 52978079, 105956158, 211912316, 681834757, 1363669514, 2727339028, 4772843299, 7500182327, 9545686598, 15000364654, 19091373196, 30000729308, 52501276289, 105002552578, 210005105156]

約数ペア:

[(1, 210005105156), (2, 105002552578), (4, 52501276289), (7, 30000729308), (11, 19091373196), (14, 15000364654), (22, 9545686598), (28, 7500182327), (44, 4772843299), (77, 2727339028), (154, 1363669514), (308, 681834757), (991, 211912316), (1982, 105956158), (3964, 52978079), (6937, 30273188), (10901, 19264756), (13874, 15136594), (21802, 9632378), (27748, 7568297), (43604, 4816189), (76307, 2752108), (152614, 1376054), (305228, 688027)]