285909520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{653}}^1$

素因数の和:1100

約数の個数: 80

約数和(自身を含む): 718672752

約数和(自身を除く): 432763232

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 421, 520, 653, 842, 1040, 1306, 1684, 2105, 2612, 3265, 3368, 4210, 5224, 5473, 6530, 6736, 8420, 8489, 10448, 10946, 13060, 16840, 16978, 21892, 26120, 27365, 33680, 33956, 42445, 43784, 52240, 54730, 67912, 84890, 87568, 109460, 135824, 169780, 218920, 274913, 339560, 437840, 549826, 679120, 1099652, 1374565, 2199304, 2749130, 3573869, 4398608, 5498260, 7147738, 10996520, 14295476, 17869345, 21993040, 28590952, 35738690, 57181904, 71477380, 142954760, 285909520]

約数ペア:

[(1, 285909520), (2, 142954760), (4, 71477380), (5, 57181904), (8, 35738690), (10, 28590952), (13, 21993040), (16, 17869345), (20, 14295476), (26, 10996520), (40, 7147738), (52, 5498260), (65, 4398608), (80, 3573869), (104, 2749130), (130, 2199304), (208, 1374565), (260, 1099652), (421, 679120), (520, 549826), (653, 437840), (842, 339560), (1040, 274913), (1306, 218920), (1684, 169780), (2105, 135824), (2612, 109460), (3265, 87568), (3368, 84890), (4210, 67912), (5224, 54730), (5473, 52240), (6530, 43784), (6736, 42445), (8420, 33956), (8489, 33680), (10448, 27365), (10946, 26120), (13060, 21892), (16840, 16978)]