20650560

素因数分解:

$2^6\times 3^1\times 5^1\times 7^2\times {\mathrm{439}}^1$

素因数の和:473

約数の個数: 168

約数和(自身を含む): 76443840

約数和(自身を除く): 55793280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 280, 294, 320, 336, 392, 420, 439, 448, 480, 490, 560, 588, 672, 735, 784, 840, 878, 960, 980, 1120, 1176, 1317, 1344, 1470, 1568, 1680, 1756, 1960, 2195, 2240, 2352, 2634, 2940, 3073, 3136, 3360, 3512, 3920, 4390, 4704, 5268, 5880, 6146, 6585, 6720, 7024, 7840, 8780, 9219, 9408, 10536, 11760, 12292, 13170, 14048, 15365, 15680, 17560, 18438, 21072, 21511, 23520, 24584, 26340, 28096, 30730, 35120, 36876, 42144, 43022, 46095, 47040, 49168, 52680, 61460, 64533, 70240, 73752, 84288, 86044, 92190, 98336, 105360, 107555, 122920, 129066, 140480, 147504, 172088, 184380, 196672, 210720, 215110, 245840, 258132, 295008, 322665, 344176, 368760, 421440, 430220, 491680, 516264, 590016, 645330, 688352, 737520, 860440, 983360, 1032528, 1290660, 1376704, 1475040, 1720880, 2065056, 2581320, 2950080, 3441760, 4130112, 5162640, 6883520, 10325280, 20650560]

約数ペア:

[(1, 20650560), (2, 10325280), (3, 6883520), (4, 5162640), (5, 4130112), (6, 3441760), (7, 2950080), (8, 2581320), (10, 2065056), (12, 1720880), (14, 1475040), (15, 1376704), (16, 1290660), (20, 1032528), (21, 983360), (24, 860440), (28, 737520), (30, 688352), (32, 645330), (35, 590016), (40, 516264), (42, 491680), (48, 430220), (49, 421440), (56, 368760), (60, 344176), (64, 322665), (70, 295008), (80, 258132), (84, 245840), (96, 215110), (98, 210720), (105, 196672), (112, 184380), (120, 172088), (140, 147504), (147, 140480), (160, 129066), (168, 122920), (192, 107555), (196, 105360), (210, 98336), (224, 92190), (240, 86044), (245, 84288), (280, 73752), (294, 70240), (320, 64533), (336, 61460), (392, 52680), (420, 49168), (439, 47040), (448, 46095), (480, 43022), (490, 42144), (560, 36876), (588, 35120), (672, 30730), (735, 28096), (784, 26340), (840, 24584), (878, 23520), (960, 21511), (980, 21072), (1120, 18438), (1176, 17560), (1317, 15680), (1344, 15365), (1470, 14048), (1568, 13170), (1680, 12292), (1756, 11760), (1960, 10536), (2195, 9408), (2240, 9219), (2352, 8780), (2634, 7840), (2940, 7024), (3073, 6720), (3136, 6585), (3360, 6146), (3512, 5880), (3920, 5268), (4390, 4704)]