638517040

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{8573}}^1$

素因数の和:8619

約数の個数: 120

約数和(自身を含む): 1818030960

約数和(自身を除く): 1179513920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 190, 196, 245, 266, 280, 304, 380, 392, 490, 532, 560, 665, 760, 784, 931, 980, 1064, 1330, 1520, 1862, 1960, 2128, 2660, 3724, 3920, 4655, 5320, 7448, 8573, 9310, 10640, 14896, 17146, 18620, 34292, 37240, 42865, 60011, 68584, 74480, 85730, 120022, 137168, 162887, 171460, 240044, 300055, 325774, 342920, 420077, 480088, 600110, 651548, 685840, 814435, 840154, 960176, 1140209, 1200220, 1303096, 1628870, 1680308, 2100385, 2280418, 2400440, 2606192, 3257740, 3360616, 4200770, 4560836, 4800880, 5701045, 6515480, 6721232, 7981463, 8401540, 9121672, 11402090, 13030960, 15962926, 16803080, 18243344, 22804180, 31925852, 33606160, 39907315, 45608360, 63851704, 79814630, 91216720, 127703408, 159629260, 319258520, 638517040]

約数ペア:

[(1, 638517040), (2, 319258520), (4, 159629260), (5, 127703408), (7, 91216720), (8, 79814630), (10, 63851704), (14, 45608360), (16, 39907315), (19, 33606160), (20, 31925852), (28, 22804180), (35, 18243344), (38, 16803080), (40, 15962926), (49, 13030960), (56, 11402090), (70, 9121672), (76, 8401540), (80, 7981463), (95, 6721232), (98, 6515480), (112, 5701045), (133, 4800880), (140, 4560836), (152, 4200770), (190, 3360616), (196, 3257740), (245, 2606192), (266, 2400440), (280, 2280418), (304, 2100385), (380, 1680308), (392, 1628870), (490, 1303096), (532, 1200220), (560, 1140209), (665, 960176), (760, 840154), (784, 814435), (931, 685840), (980, 651548), (1064, 600110), (1330, 480088), (1520, 420077), (1862, 342920), (1960, 325774), (2128, 300055), (2660, 240044), (3724, 171460), (3920, 162887), (4655, 137168), (5320, 120022), (7448, 85730), (8573, 74480), (9310, 68584), (10640, 60011), (14896, 42865), (17146, 37240), (18620, 34292)]