69890905

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 103749120

約数和(自身を除く): 33858215

約数列:

[1, 5, 7, 23, 35, 49, 79, 115, 157, 161, 245, 395, 553, 785, 805, 1099, 1127, 1817, 2765, 3611, 3871, 5495, 5635, 7693, 9085, 12403, 12719, 18055, 19355, 25277, 38465, 62015, 63595, 86821, 89033, 126385, 176939, 285269, 434105, 445165, 607747, 884695, 1426345, 1996883, 3038735, 9984415, 13978181, 69890905]

約数ペア:

[(1, 69890905), (5, 13978181), (7, 9984415), (23, 3038735), (35, 1996883), (49, 1426345), (79, 884695), (115, 607747), (157, 445165), (161, 434105), (245, 285269), (395, 176939), (553, 126385), (785, 89033), (805, 86821), (1099, 63595), (1127, 62015), (1817, 38465), (2765, 25277), (3611, 19355), (3871, 18055), (5495, 12719), (5635, 12403), (7693, 9085)]