155365720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{228479}}^1$

素因数の和:228507

約数の個数: 32

約数和(自身を含む): 370137600

約数和(自身を除く): 214771880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 228479, 456958, 913916, 1142395, 1827832, 2284790, 3884143, 4569580, 7768286, 9139160, 15536572, 19420715, 31073144, 38841430, 77682860, 155365720]

約数ペア:

[(1, 155365720), (2, 77682860), (4, 38841430), (5, 31073144), (8, 19420715), (10, 15536572), (17, 9139160), (20, 7768286), (34, 4569580), (40, 3884143), (68, 2284790), (85, 1827832), (136, 1142395), (170, 913916), (340, 456958), (680, 228479)]