17991520

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4889}}^1$

素因数の和:4927

約数の個数: 48

約数和(自身を含む): 44362080

約数和(自身を除く): 26370560

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, 4889, 9778, 19556, 24445, 39112, 48890, 78224, 97780, 112447, 156448, 195560, 224894, 391120, 449788, 562235, 782240, 899576, 1124470, 1799152, 2248940, 3598304, 4497880, 8995760, 17991520]

約数ペア:

[(1, 17991520), (2, 8995760), (4, 4497880), (5, 3598304), (8, 2248940), (10, 1799152), (16, 1124470), (20, 899576), (23, 782240), (32, 562235), (40, 449788), (46, 391120), (80, 224894), (92, 195560), (115, 156448), (160, 112447), (184, 97780), (230, 78224), (368, 48890), (460, 39112), (736, 24445), (920, 19556), (1840, 9778), (3680, 4889)]