28442480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32321}}^1$

素因数の和:32345

約数の個数: 40

約数和(自身を含む): 72142704

約数和(自身を除く): 43700224

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 32321, 64642, 129284, 161605, 258568, 323210, 355531, 517136, 646420, 711062, 1292840, 1422124, 1777655, 2585680, 2844248, 3555310, 5688496, 7110620, 14221240, 28442480]

約数ペア:

[(1, 28442480), (2, 14221240), (4, 7110620), (5, 5688496), (8, 3555310), (10, 2844248), (11, 2585680), (16, 1777655), (20, 1422124), (22, 1292840), (40, 711062), (44, 646420), (55, 517136), (80, 355531), (88, 323210), (110, 258568), (176, 161605), (220, 129284), (440, 64642), (880, 32321)]