1640667064

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{1123}}^1$

素因数の和:1340

約数の個数: 64

約数和(自身を含む): 3275965440

約数和(自身を除く): 1635298376

約数列:

[1, 2, 4, 8, 31, 43, 62, 86, 124, 137, 172, 248, 274, 344, 548, 1096, 1123, 1333, 2246, 2666, 4247, 4492, 5332, 5891, 8494, 8984, 10664, 11782, 16988, 23564, 33976, 34813, 47128, 48289, 69626, 96578, 139252, 153851, 182621, 193156, 278504, 307702, 365242, 386312, 615404, 730484, 1230808, 1460968, 1496959, 2993918, 4769381, 5987836, 6615593, 9538762, 11975672, 13231186, 19077524, 26462372, 38155048, 52924744, 205083383, 410166766, 820333532, 1640667064]

約数ペア:

[(1, 1640667064), (2, 820333532), (4, 410166766), (8, 205083383), (31, 52924744), (43, 38155048), (62, 26462372), (86, 19077524), (124, 13231186), (137, 11975672), (172, 9538762), (248, 6615593), (274, 5987836), (344, 4769381), (548, 2993918), (1096, 1496959), (1123, 1460968), (1333, 1230808), (2246, 730484), (2666, 615404), (4247, 386312), (4492, 365242), (5332, 307702), (5891, 278504), (8494, 193156), (8984, 182621), (10664, 153851), (11782, 139252), (16988, 96578), (23564, 69626), (33976, 48289), (34813, 47128)]