20976870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:309

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 31277850

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 79, 106, 158, 159, 167, 237, 265, 318, 334, 395, 474, 501, 530, 790, 795, 835, 1002, 1185, 1590, 1670, 2370, 2505, 4187, 5010, 8374, 8851, 12561, 13193, 17702, 20935, 25122, 26386, 26553, 39579, 41870, 44255, 53106, 62805, 65965, 79158, 88510, 125610, 131930, 132765, 197895, 265530, 395790, 699229, 1398458, 2097687, 3496145, 4195374, 6992290, 10488435, 20976870]

約数ペア:

[(1, 20976870), (2, 10488435), (3, 6992290), (5, 4195374), (6, 3496145), (10, 2097687), (15, 1398458), (30, 699229), (53, 395790), (79, 265530), (106, 197895), (158, 132765), (159, 131930), (167, 125610), (237, 88510), (265, 79158), (318, 65965), (334, 62805), (395, 53106), (474, 44255), (501, 41870), (530, 39579), (790, 26553), (795, 26386), (835, 25122), (1002, 20935), (1185, 17702), (1590, 13193), (1670, 12561), (2370, 8851), (2505, 8374), (4187, 5010)]