20254290

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2243}}^1$

素因数の和:2303

約数の個数: 64

約数和(自身を含む): 56871936

約数和(自身を除く): 36617646

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 43, 70, 86, 105, 129, 210, 215, 258, 301, 430, 602, 645, 903, 1290, 1505, 1806, 2243, 3010, 4486, 4515, 6729, 9030, 11215, 13458, 15701, 22430, 31402, 33645, 47103, 67290, 78505, 94206, 96449, 157010, 192898, 235515, 289347, 471030, 482245, 578694, 675143, 964490, 1350286, 1446735, 2025429, 2893470, 3375715, 4050858, 6751430, 10127145, 20254290]

約数ペア:

[(1, 20254290), (2, 10127145), (3, 6751430), (5, 4050858), (6, 3375715), (7, 2893470), (10, 2025429), (14, 1446735), (15, 1350286), (21, 964490), (30, 675143), (35, 578694), (42, 482245), (43, 471030), (70, 289347), (86, 235515), (105, 192898), (129, 157010), (210, 96449), (215, 94206), (258, 78505), (301, 67290), (430, 47103), (602, 33645), (645, 31402), (903, 22430), (1290, 15701), (1505, 13458), (1806, 11215), (2243, 9030), (3010, 6729), (4486, 4515)]