257200860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{612383}}^1$

素因数の和:612402

約数の個数: 48

約数和(自身を含む): 823044096

約数和(自身を除く): 565843236

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 612383, 1224766, 1837149, 2449532, 3061915, 3674298, 4286681, 6123830, 7348596, 8573362, 9185745, 12247660, 12860043, 17146724, 18371490, 21433405, 25720086, 36742980, 42866810, 51440172, 64300215, 85733620, 128600430, 257200860]

約数ペア:

[(1, 257200860), (2, 128600430), (3, 85733620), (4, 64300215), (5, 51440172), (6, 42866810), (7, 36742980), (10, 25720086), (12, 21433405), (14, 18371490), (15, 17146724), (20, 12860043), (21, 12247660), (28, 9185745), (30, 8573362), (35, 7348596), (42, 6123830), (60, 4286681), (70, 3674298), (84, 3061915), (105, 2449532), (140, 1837149), (210, 1224766), (420, 612383)]