28678356

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{317}}^1\times {\mathrm{359}}^1$

素因数の和:693

約数の個数: 72

約数和(自身を含む): 83341440

約数和(自身を除く): 54663084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 317, 359, 634, 718, 951, 1077, 1268, 1436, 1902, 2154, 2219, 2513, 2853, 3231, 3804, 4308, 4438, 5026, 5706, 6462, 6657, 7539, 8876, 10052, 11412, 12924, 13314, 15078, 19971, 22617, 26628, 30156, 39942, 45234, 79884, 90468, 113803, 227606, 341409, 455212, 682818, 796621, 1024227, 1365636, 1593242, 2048454, 2389863, 3186484, 4096908, 4779726, 7169589, 9559452, 14339178, 28678356]

約数ペア:

[(1, 28678356), (2, 14339178), (3, 9559452), (4, 7169589), (6, 4779726), (7, 4096908), (9, 3186484), (12, 2389863), (14, 2048454), (18, 1593242), (21, 1365636), (28, 1024227), (36, 796621), (42, 682818), (63, 455212), (84, 341409), (126, 227606), (252, 113803), (317, 90468), (359, 79884), (634, 45234), (718, 39942), (951, 30156), (1077, 26628), (1268, 22617), (1436, 19971), (1902, 15078), (2154, 13314), (2219, 12924), (2513, 11412), (2853, 10052), (3231, 8876), (3804, 7539), (4308, 6657), (4438, 6462), (5026, 5706)]