155720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 372600

約数和(自身を除く): 216880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 229, 340, 458, 680, 916, 1145, 1832, 2290, 3893, 4580, 7786, 9160, 15572, 19465, 31144, 38930, 77860, 155720]

約数ペア:

[(1, 155720), (2, 77860), (4, 38930), (5, 31144), (8, 19465), (10, 15572), (17, 9160), (20, 7786), (34, 4580), (40, 3893), (68, 2290), (85, 1832), (136, 1145), (170, 916), (229, 680), (340, 458)]