640131870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{3048247}}^1$

素因数の和:3048264

約数の個数: 32

約数和(自身を含む): 1755790848

約数和(自身を除く): 1115658978

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 3048247, 6096494, 9144741, 15241235, 18289482, 21337729, 30482470, 42675458, 45723705, 64013187, 91447410, 106688645, 128026374, 213377290, 320065935, 640131870]

約数ペア:

[(1, 640131870), (2, 320065935), (3, 213377290), (5, 128026374), (6, 106688645), (7, 91447410), (10, 64013187), (14, 45723705), (15, 42675458), (21, 30482470), (30, 21337729), (35, 18289482), (42, 15241235), (70, 9144741), (105, 6096494), (210, 3048247)]