18996880580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{467213}}^1$

素因数の和:467348

約数の個数: 48

約数和(自身を含む): 42385654080

約数和(自身を除く): 23388773500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 107, 190, 214, 380, 428, 535, 1070, 2033, 2140, 4066, 8132, 10165, 20330, 40660, 467213, 934426, 1868852, 2336065, 4672130, 8877047, 9344260, 17754094, 35508188, 44385235, 49991791, 88770470, 99983582, 177540940, 199967164, 249958955, 499917910, 949844029, 999835820, 1899688058, 3799376116, 4749220145, 9498440290, 18996880580]

約数ペア:

[(1, 18996880580), (2, 9498440290), (4, 4749220145), (5, 3799376116), (10, 1899688058), (19, 999835820), (20, 949844029), (38, 499917910), (76, 249958955), (95, 199967164), (107, 177540940), (190, 99983582), (214, 88770470), (380, 49991791), (428, 44385235), (535, 35508188), (1070, 17754094), (2033, 9344260), (2140, 8877047), (4066, 4672130), (8132, 2336065), (10165, 1868852), (20330, 934426), (40660, 467213)]