427996415

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 664215552

約数和(自身を除く): 236219137

約数列:

[1, 5, 7, 11, 35, 43, 55, 77, 103, 215, 251, 301, 385, 473, 515, 721, 1133, 1255, 1505, 1757, 2365, 2761, 3311, 3605, 4429, 5665, 7931, 8785, 10793, 13805, 16555, 19327, 22145, 25853, 31003, 39655, 48719, 53965, 75551, 96635, 118723, 129265, 155015, 180971, 243595, 284383, 341033, 377755, 593615, 831061, 904855, 1111679, 1421915, 1705165, 1990681, 4155305, 5558395, 7781753, 9953405, 12228469, 38908765, 61142345, 85599283, 427996415]

約数ペア:

[(1, 427996415), (5, 85599283), (7, 61142345), (11, 38908765), (35, 12228469), (43, 9953405), (55, 7781753), (77, 5558395), (103, 4155305), (215, 1990681), (251, 1705165), (301, 1421915), (385, 1111679), (473, 904855), (515, 831061), (721, 593615), (1133, 377755), (1255, 341033), (1505, 284383), (1757, 243595), (2365, 180971), (2761, 155015), (3311, 129265), (3605, 118723), (4429, 96635), (5665, 75551), (7931, 53965), (8785, 48719), (10793, 39655), (13805, 31003), (16555, 25853), (19327, 22145)]