28739920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2969}}^1$

素因数の和:3004

約数の個数: 60

約数和(自身を含む): 73471860

約数和(自身を除く): 44731940

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2420, 2969, 4840, 5938, 9680, 11876, 14845, 23752, 29690, 32659, 47504, 59380, 65318, 118760, 130636, 163295, 237520, 261272, 326590, 359249, 522544, 653180, 718498, 1306360, 1436996, 1796245, 2612720, 2873992, 3592490, 5747984, 7184980, 14369960, 28739920]

約数ペア:

[(1, 28739920), (2, 14369960), (4, 7184980), (5, 5747984), (8, 3592490), (10, 2873992), (11, 2612720), (16, 1796245), (20, 1436996), (22, 1306360), (40, 718498), (44, 653180), (55, 522544), (80, 359249), (88, 326590), (110, 261272), (121, 237520), (176, 163295), (220, 130636), (242, 118760), (440, 65318), (484, 59380), (605, 47504), (880, 32659), (968, 29690), (1210, 23752), (1936, 14845), (2420, 11876), (2969, 9680), (4840, 5938)]