664420652

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{15809}}^1$

素因数の和:15918

約数の個数: 48

約数和(自身を含む): 1416576000

約数和(自身を除く): 752155348

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 79, 133, 158, 266, 316, 532, 553, 1106, 1501, 2212, 3002, 6004, 10507, 15809, 21014, 31618, 42028, 63236, 110663, 221326, 300371, 442652, 600742, 1201484, 1248911, 2102597, 2497822, 4205194, 4995644, 8410388, 8742377, 17484754, 23729309, 34969508, 47458618, 94917236, 166105163, 332210326, 664420652]

約数ペア:

[(1, 664420652), (2, 332210326), (4, 166105163), (7, 94917236), (14, 47458618), (19, 34969508), (28, 23729309), (38, 17484754), (76, 8742377), (79, 8410388), (133, 4995644), (158, 4205194), (266, 2497822), (316, 2102597), (532, 1248911), (553, 1201484), (1106, 600742), (1501, 442652), (2212, 300371), (3002, 221326), (6004, 110663), (10507, 63236), (15809, 42028), (21014, 31618)]