19980930138

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{77933}}^1$

素因数の和:78143

約数の個数: 64

約数和(自身を含む): 45563333760

約数和(自身を除く): 25582403622

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 78, 114, 173, 247, 346, 494, 519, 741, 1038, 1482, 2249, 3287, 4498, 6574, 6747, 9861, 13494, 19722, 42731, 77933, 85462, 128193, 155866, 233799, 256386, 467598, 1013129, 1480727, 2026258, 2961454, 3039387, 4442181, 6078774, 8884362, 13482409, 19249451, 26964818, 38498902, 40447227, 57748353, 80894454, 115496706, 175271317, 256165771, 350542634, 512331542, 525813951, 768497313, 1051627902, 1536994626, 3330155023, 6660310046, 9990465069, 19980930138]

約数ペア:

[(1, 19980930138), (2, 9990465069), (3, 6660310046), (6, 3330155023), (13, 1536994626), (19, 1051627902), (26, 768497313), (38, 525813951), (39, 512331542), (57, 350542634), (78, 256165771), (114, 175271317), (173, 115496706), (247, 80894454), (346, 57748353), (494, 40447227), (519, 38498902), (741, 26964818), (1038, 19249451), (1482, 13482409), (2249, 8884362), (3287, 6078774), (4498, 4442181), (6574, 3039387), (6747, 2961454), (9861, 2026258), (13494, 1480727), (19722, 1013129), (42731, 467598), (77933, 256386), (85462, 233799), (128193, 155866)]