28245756

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{397}}^1$

素因数の和:440

約数の個数: 108

約数和(自身を含む): 84482664

約数和(自身を除く): 56236908

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 49, 66, 77, 84, 98, 121, 132, 147, 154, 196, 231, 242, 294, 308, 363, 397, 462, 484, 539, 588, 726, 794, 847, 924, 1078, 1191, 1452, 1588, 1617, 1694, 2156, 2382, 2541, 2779, 3234, 3388, 4367, 4764, 5082, 5558, 5929, 6468, 8337, 8734, 10164, 11116, 11858, 13101, 16674, 17468, 17787, 19453, 23716, 26202, 30569, 33348, 35574, 38906, 48037, 52404, 58359, 61138, 71148, 77812, 91707, 96074, 116718, 122276, 144111, 183414, 192148, 213983, 233436, 288222, 336259, 366828, 427966, 576444, 641949, 672518, 855932, 1008777, 1283898, 1345036, 2017554, 2353813, 2567796, 4035108, 4707626, 7061439, 9415252, 14122878, 28245756]

約数ペア:

[(1, 28245756), (2, 14122878), (3, 9415252), (4, 7061439), (6, 4707626), (7, 4035108), (11, 2567796), (12, 2353813), (14, 2017554), (21, 1345036), (22, 1283898), (28, 1008777), (33, 855932), (42, 672518), (44, 641949), (49, 576444), (66, 427966), (77, 366828), (84, 336259), (98, 288222), (121, 233436), (132, 213983), (147, 192148), (154, 183414), (196, 144111), (231, 122276), (242, 116718), (294, 96074), (308, 91707), (363, 77812), (397, 71148), (462, 61138), (484, 58359), (539, 52404), (588, 48037), (726, 38906), (794, 35574), (847, 33348), (924, 30569), (1078, 26202), (1191, 23716), (1452, 19453), (1588, 17787), (1617, 17468), (1694, 16674), (2156, 13101), (2382, 11858), (2541, 11116), (2779, 10164), (3234, 8734), (3388, 8337), (4367, 6468), (4764, 5929), (5082, 5558)]