65280980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{733}}^1$

素因数の和:876

約数の個数: 48

約数和(自身を含む): 141438864

約数和(自身を除く): 76157884

約数列:

[1, 2, 4, 5, 10, 20, 61, 73, 122, 146, 244, 292, 305, 365, 610, 730, 733, 1220, 1460, 1466, 2932, 3665, 4453, 7330, 8906, 14660, 17812, 22265, 44530, 44713, 53509, 89060, 89426, 107018, 178852, 214036, 223565, 267545, 447130, 535090, 894260, 1070180, 3264049, 6528098, 13056196, 16320245, 32640490, 65280980]

約数ペア:

[(1, 65280980), (2, 32640490), (4, 16320245), (5, 13056196), (10, 6528098), (20, 3264049), (61, 1070180), (73, 894260), (122, 535090), (146, 447130), (244, 267545), (292, 223565), (305, 214036), (365, 178852), (610, 107018), (730, 89426), (733, 89060), (1220, 53509), (1460, 44713), (1466, 44530), (2932, 22265), (3665, 17812), (4453, 14660), (7330, 8906)]