81548800

素因数分解:

$2^9\times 5^2\times {\mathrm{23}}^1\times {\mathrm{277}}^1$

素因数の和:328

約数の個数: 120

約数和(自身を含む): 211589136

約数和(自身を除く): 130040336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 80, 92, 100, 115, 128, 160, 184, 200, 230, 256, 277, 320, 368, 400, 460, 512, 554, 575, 640, 736, 800, 920, 1108, 1150, 1280, 1385, 1472, 1600, 1840, 2216, 2300, 2560, 2770, 2944, 3200, 3680, 4432, 4600, 5540, 5888, 6371, 6400, 6925, 7360, 8864, 9200, 11080, 11776, 12742, 12800, 13850, 14720, 17728, 18400, 22160, 25484, 27700, 29440, 31855, 35456, 36800, 44320, 50968, 55400, 58880, 63710, 70912, 73600, 88640, 101936, 110800, 127420, 141824, 147200, 159275, 177280, 203872, 221600, 254840, 294400, 318550, 354560, 407744, 443200, 509680, 637100, 709120, 815488, 886400, 1019360, 1274200, 1630976, 1772800, 2038720, 2548400, 3261952, 3545600, 4077440, 5096800, 8154880, 10193600, 16309760, 20387200, 40774400, 81548800]

約数ペア:

[(1, 81548800), (2, 40774400), (4, 20387200), (5, 16309760), (8, 10193600), (10, 8154880), (16, 5096800), (20, 4077440), (23, 3545600), (25, 3261952), (32, 2548400), (40, 2038720), (46, 1772800), (50, 1630976), (64, 1274200), (80, 1019360), (92, 886400), (100, 815488), (115, 709120), (128, 637100), (160, 509680), (184, 443200), (200, 407744), (230, 354560), (256, 318550), (277, 294400), (320, 254840), (368, 221600), (400, 203872), (460, 177280), (512, 159275), (554, 147200), (575, 141824), (640, 127420), (736, 110800), (800, 101936), (920, 88640), (1108, 73600), (1150, 70912), (1280, 63710), (1385, 58880), (1472, 55400), (1600, 50968), (1840, 44320), (2216, 36800), (2300, 35456), (2560, 31855), (2770, 29440), (2944, 27700), (3200, 25484), (3680, 22160), (4432, 18400), (4600, 17728), (5540, 14720), (5888, 13850), (6371, 12800), (6400, 12742), (6925, 11776), (7360, 11080), (8864, 9200)]