393150640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{1789}}^1$

素因数の和:1910

約数の個数: 80

約数和(自身を含む): 950876640

約数和(自身を除く): 557726000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 67, 80, 82, 134, 164, 205, 268, 328, 335, 410, 536, 656, 670, 820, 1072, 1340, 1640, 1789, 2680, 2747, 3280, 3578, 5360, 5494, 7156, 8945, 10988, 13735, 14312, 17890, 21976, 27470, 28624, 35780, 43952, 54940, 71560, 73349, 109880, 119863, 143120, 146698, 219760, 239726, 293396, 366745, 479452, 586792, 599315, 733490, 958904, 1173584, 1198630, 1466980, 1917808, 2397260, 2933960, 4794520, 4914383, 5867920, 9589040, 9828766, 19657532, 24571915, 39315064, 49143830, 78630128, 98287660, 196575320, 393150640]

約数ペア:

[(1, 393150640), (2, 196575320), (4, 98287660), (5, 78630128), (8, 49143830), (10, 39315064), (16, 24571915), (20, 19657532), (40, 9828766), (41, 9589040), (67, 5867920), (80, 4914383), (82, 4794520), (134, 2933960), (164, 2397260), (205, 1917808), (268, 1466980), (328, 1198630), (335, 1173584), (410, 958904), (536, 733490), (656, 599315), (670, 586792), (820, 479452), (1072, 366745), (1340, 293396), (1640, 239726), (1789, 219760), (2680, 146698), (2747, 143120), (3280, 119863), (3578, 109880), (5360, 73349), (5494, 71560), (7156, 54940), (8945, 43952), (10988, 35780), (13735, 28624), (14312, 27470), (17890, 21976)]