290740480

素因数分解:

$2^8\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1153}}^1$

素因数の和:1371

約数の個数: 72

約数和(自身を含む): 700556472

約数和(自身を除く): 409815992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 197, 256, 320, 394, 640, 788, 985, 1153, 1280, 1576, 1970, 2306, 3152, 3940, 4612, 5765, 6304, 7880, 9224, 11530, 12608, 15760, 18448, 23060, 25216, 31520, 36896, 46120, 50432, 63040, 73792, 92240, 126080, 147584, 184480, 227141, 252160, 295168, 368960, 454282, 737920, 908564, 1135705, 1475840, 1817128, 2271410, 3634256, 4542820, 7268512, 9085640, 14537024, 18171280, 29074048, 36342560, 58148096, 72685120, 145370240, 290740480]

約数ペア:

[(1, 290740480), (2, 145370240), (4, 72685120), (5, 58148096), (8, 36342560), (10, 29074048), (16, 18171280), (20, 14537024), (32, 9085640), (40, 7268512), (64, 4542820), (80, 3634256), (128, 2271410), (160, 1817128), (197, 1475840), (256, 1135705), (320, 908564), (394, 737920), (640, 454282), (788, 368960), (985, 295168), (1153, 252160), (1280, 227141), (1576, 184480), (1970, 147584), (2306, 126080), (3152, 92240), (3940, 73792), (4612, 63040), (5765, 50432), (6304, 46120), (7880, 36896), (9224, 31520), (11530, 25216), (12608, 23060), (15760, 18448)]