221997720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{264283}}^1$

素因数の和:264304

約数の個数: 64

約数和(自身を含む): 761137920

約数和(自身を除く): 539140200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 264283, 528566, 792849, 1057132, 1321415, 1585698, 1849981, 2114264, 2642830, 3171396, 3699962, 3964245, 5285660, 5549943, 6342792, 7399924, 7928490, 9249905, 10571320, 11099886, 14799848, 15856980, 18499810, 22199772, 27749715, 31713960, 36999620, 44399544, 55499430, 73999240, 110998860, 221997720]

約数ペア:

[(1, 221997720), (2, 110998860), (3, 73999240), (4, 55499430), (5, 44399544), (6, 36999620), (7, 31713960), (8, 27749715), (10, 22199772), (12, 18499810), (14, 15856980), (15, 14799848), (20, 11099886), (21, 10571320), (24, 9249905), (28, 7928490), (30, 7399924), (35, 6342792), (40, 5549943), (42, 5285660), (56, 3964245), (60, 3699962), (70, 3171396), (84, 2642830), (105, 2114264), (120, 1849981), (140, 1585698), (168, 1321415), (210, 1057132), (280, 792849), (420, 528566), (840, 264283)]