20797282636

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{431}}^1\times {\mathrm{1741}}^1$

素因数の和:2243

約数の個数: 72

約数和(自身を含む): 40488372288

約数和(自身を除く): 19691089652

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 169, 338, 431, 533, 676, 862, 1066, 1724, 1741, 2132, 3482, 5603, 6929, 6964, 11206, 13858, 17671, 22412, 22633, 27716, 35342, 45266, 70684, 71381, 72839, 90532, 142762, 145678, 229723, 285524, 291356, 294229, 459446, 588458, 750371, 918892, 927953, 1176916, 1500742, 1855906, 2986399, 3001484, 3711812, 5972798, 9754823, 11945596, 12063389, 19509646, 24126778, 30765211, 39019292, 48253556, 61530422, 123060844, 126812699, 253625398, 399947743, 507250796, 799895486, 1599790972, 5199320659, 10398641318, 20797282636]

約数ペア:

[(1, 20797282636), (2, 10398641318), (4, 5199320659), (13, 1599790972), (26, 799895486), (41, 507250796), (52, 399947743), (82, 253625398), (164, 126812699), (169, 123060844), (338, 61530422), (431, 48253556), (533, 39019292), (676, 30765211), (862, 24126778), (1066, 19509646), (1724, 12063389), (1741, 11945596), (2132, 9754823), (3482, 5972798), (5603, 3711812), (6929, 3001484), (6964, 2986399), (11206, 1855906), (13858, 1500742), (17671, 1176916), (22412, 927953), (22633, 918892), (27716, 750371), (35342, 588458), (45266, 459446), (70684, 294229), (71381, 291356), (72839, 285524), (90532, 229723), (142762, 145678)]