1851479985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{491}}^1$

素因数の和:750

約数の個数: 64

約数和(自身を含む): 3179658240

約数和(自身を除く): 1328178255

約数列:

[1, 3, 5, 15, 19, 57, 95, 101, 131, 285, 303, 393, 491, 505, 655, 1473, 1515, 1919, 1965, 2455, 2489, 5757, 7365, 7467, 9329, 9595, 12445, 13231, 27987, 28785, 37335, 39693, 46645, 49591, 64321, 66155, 139935, 148773, 192963, 198465, 247955, 251389, 321605, 743865, 754167, 942229, 964815, 1222099, 1256945, 2826687, 3666297, 3770835, 4711145, 6110495, 6496421, 14133435, 18331485, 19489263, 32482105, 97446315, 123431999, 370295997, 617159995, 1851479985]

約数ペア:

[(1, 1851479985), (3, 617159995), (5, 370295997), (15, 123431999), (19, 97446315), (57, 32482105), (95, 19489263), (101, 18331485), (131, 14133435), (285, 6496421), (303, 6110495), (393, 4711145), (491, 3770835), (505, 3666297), (655, 2826687), (1473, 1256945), (1515, 1222099), (1919, 964815), (1965, 942229), (2455, 754167), (2489, 743865), (5757, 321605), (7365, 251389), (7467, 247955), (9329, 198465), (9595, 192963), (12445, 148773), (13231, 139935), (27987, 66155), (28785, 64321), (37335, 49591), (39693, 46645)]