1285160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 3086100

約数和(自身を除く): 1800940

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 356, 361, 380, 445, 712, 722, 760, 890, 1444, 1691, 1780, 1805, 2888, 3382, 3560, 3610, 6764, 7220, 8455, 13528, 14440, 16910, 32129, 33820, 64258, 67640, 128516, 160645, 257032, 321290, 642580, 1285160]

約数ペア:

[(1, 1285160), (2, 642580), (4, 321290), (5, 257032), (8, 160645), (10, 128516), (19, 67640), (20, 64258), (38, 33820), (40, 32129), (76, 16910), (89, 14440), (95, 13528), (152, 8455), (178, 7220), (190, 6764), (356, 3610), (361, 3560), (380, 3382), (445, 2888), (712, 1805), (722, 1780), (760, 1691), (890, 1444)]