281947995

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{89}}^2\times {\mathrm{113}}^1$

素因数の和:309

約数の個数: 72

約数和(自身を含む): 569870496

約数和(自身を除く): 287922501

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 89, 105, 113, 267, 315, 339, 445, 565, 623, 791, 801, 1017, 1335, 1695, 1869, 2373, 3115, 3955, 4005, 5085, 5607, 7119, 7921, 9345, 10057, 11865, 23763, 28035, 30171, 35595, 39605, 50285, 55447, 70399, 71289, 90513, 118815, 150855, 166341, 211197, 277235, 351995, 356445, 452565, 499023, 633591, 831705, 895073, 1055985, 2495115, 2685219, 3167955, 4475365, 6265511, 8055657, 13426095, 18796533, 31327555, 40278285, 56389599, 93982665, 281947995]

約数ペア:

[(1, 281947995), (3, 93982665), (5, 56389599), (7, 40278285), (9, 31327555), (15, 18796533), (21, 13426095), (35, 8055657), (45, 6265511), (63, 4475365), (89, 3167955), (105, 2685219), (113, 2495115), (267, 1055985), (315, 895073), (339, 831705), (445, 633591), (565, 499023), (623, 452565), (791, 356445), (801, 351995), (1017, 277235), (1335, 211197), (1695, 166341), (1869, 150855), (2373, 118815), (3115, 90513), (3955, 71289), (4005, 70399), (5085, 55447), (5607, 50285), (7119, 39605), (7921, 35595), (9345, 30171), (10057, 28035), (11865, 23763)]