20172571685

素因数分解:

$5^1\times 7^1\times {\mathrm{109}}^2\times {\mathrm{139}}^1\times {\mathrm{349}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 28202832000

約数和(自身を除く): 8030260315

約数列:

[1, 5, 7, 35, 109, 139, 349, 545, 695, 763, 973, 1745, 2443, 3815, 4865, 11881, 12215, 15151, 38041, 48511, 59405, 75755, 83167, 106057, 190205, 242555, 266287, 339577, 415835, 530285, 1331435, 1651459, 1697885, 4146469, 5287699, 8257295, 11560213, 20732345, 26438495, 29025283, 37013893, 57801065, 145126415, 185069465, 576359191, 2881795955, 4034514337, 20172571685]

約数ペア:

[(1, 20172571685), (5, 4034514337), (7, 2881795955), (35, 576359191), (109, 185069465), (139, 145126415), (349, 57801065), (545, 37013893), (695, 29025283), (763, 26438495), (973, 20732345), (1745, 11560213), (2443, 8257295), (3815, 5287699), (4865, 4146469), (11881, 1697885), (12215, 1651459), (15151, 1331435), (38041, 530285), (48511, 415835), (59405, 339577), (75755, 266287), (83167, 242555), (106057, 190205)]