28906670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{971}}^1$

素因数の和:1220

約数の個数: 32

約数和(自身を含む): 56337120

約数和(自身を除く): 27430450

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 229, 458, 971, 1145, 1942, 2290, 2977, 4855, 5954, 9710, 12623, 14885, 25246, 29770, 63115, 126230, 222359, 444718, 1111795, 2223590, 2890667, 5781334, 14453335, 28906670]

約数ペア:

[(1, 28906670), (2, 14453335), (5, 5781334), (10, 2890667), (13, 2223590), (26, 1111795), (65, 444718), (130, 222359), (229, 126230), (458, 63115), (971, 29770), (1145, 25246), (1942, 14885), (2290, 12623), (2977, 9710), (4855, 5954)]