20828820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8467}}^1$

素因数の和:8520

約数の個数: 48

約数和(自身を含む): 59750208

約数和(自身を除く): 38921388

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 8467, 16934, 25401, 33868, 42335, 50802, 84670, 101604, 127005, 169340, 254010, 347147, 508020, 694294, 1041441, 1388588, 1735735, 2082882, 3471470, 4165764, 5207205, 6942940, 10414410, 20828820]

約数ペア:

[(1, 20828820), (2, 10414410), (3, 6942940), (4, 5207205), (5, 4165764), (6, 3471470), (10, 2082882), (12, 1735735), (15, 1388588), (20, 1041441), (30, 694294), (41, 508020), (60, 347147), (82, 254010), (123, 169340), (164, 127005), (205, 101604), (246, 84670), (410, 50802), (492, 42335), (615, 33868), (820, 25401), (1230, 16934), (2460, 8467)]