18065120

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4909}}^1$

素因数の和:4947

約数の個数: 48

約数和(自身を含む): 44543520

約数和(自身を除く): 26478400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 4909, 9818, 19636, 24545, 39272, 49090, 78544, 98180, 112907, 157088, 196360, 225814, 392720, 451628, 564535, 785440, 903256, 1129070, 1806512, 2258140, 3613024, 4516280, 9032560, 18065120]

約数ペア:

[(1, 18065120), (2, 9032560), (4, 4516280), (5, 3613024), (8, 2258140), (10, 1806512), (16, 1129070), (20, 903256), (23, 785440), (32, 564535), (40, 451628), (46, 392720), (80, 225814), (92, 196360), (115, 157088), (160, 112907), (184, 98180), (230, 78544), (368, 49090), (460, 39272), (736, 24545), (920, 19636), (1840, 9818), (3680, 4909)]