28071505

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4289}}^1$

素因数の和:4329

約数の個数: 32

約数和(自身を含む): 44478720

約数和(自身を除く): 16407215

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 187, 385, 595, 935, 1309, 4289, 6545, 21445, 30023, 47179, 72913, 150115, 235895, 330253, 364565, 510391, 802043, 1651265, 2551955, 4010215, 5614301, 28071505]

約数ペア:

[(1, 28071505), (5, 5614301), (7, 4010215), (11, 2551955), (17, 1651265), (35, 802043), (55, 510391), (77, 364565), (85, 330253), (119, 235895), (187, 150115), (385, 72913), (595, 47179), (935, 30023), (1309, 21445), (4289, 6545)]