28156485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 54743040

約数和(自身を除く): 26586555

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 89, 105, 115, 131, 161, 267, 345, 393, 445, 483, 623, 655, 805, 917, 1335, 1869, 1965, 2047, 2415, 2751, 3013, 3115, 4585, 6141, 9039, 9345, 10235, 11659, 13755, 14329, 15065, 21091, 30705, 34977, 42987, 45195, 58295, 63273, 71645, 81613, 105455, 174885, 214935, 244839, 268157, 316365, 408065, 804471, 1224195, 1340785, 1877099, 4022355, 5631297, 9385495, 28156485]

約数ペア:

[(1, 28156485), (3, 9385495), (5, 5631297), (7, 4022355), (15, 1877099), (21, 1340785), (23, 1224195), (35, 804471), (69, 408065), (89, 316365), (105, 268157), (115, 244839), (131, 214935), (161, 174885), (267, 105455), (345, 81613), (393, 71645), (445, 63273), (483, 58295), (623, 45195), (655, 42987), (805, 34977), (917, 30705), (1335, 21091), (1869, 15065), (1965, 14329), (2047, 13755), (2415, 11659), (2751, 10235), (3013, 9345), (3115, 9039), (4585, 6141)]