172720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:157

約数の個数: 40

約数和(自身を含む): 428544

約数和(自身を除く): 255824

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 127, 136, 170, 254, 272, 340, 508, 635, 680, 1016, 1270, 1360, 2032, 2159, 2540, 4318, 5080, 8636, 10160, 10795, 17272, 21590, 34544, 43180, 86360, 172720]

約数ペア:

[(1, 172720), (2, 86360), (4, 43180), (5, 34544), (8, 21590), (10, 17272), (16, 10795), (17, 10160), (20, 8636), (34, 5080), (40, 4318), (68, 2540), (80, 2159), (85, 2032), (127, 1360), (136, 1270), (170, 1016), (254, 680), (272, 635), (340, 508)]