490608580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{641}}^1$

素因数の和:746

約数の個数: 144

約数和(自身を含む): 1327923072

約数和(自身を除く): 837314492

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 71, 77, 98, 110, 140, 142, 154, 196, 220, 245, 284, 308, 355, 385, 490, 497, 539, 641, 710, 770, 781, 980, 994, 1078, 1282, 1420, 1540, 1562, 1988, 2156, 2485, 2564, 2695, 3124, 3205, 3479, 3905, 4487, 4970, 5390, 5467, 6410, 6958, 7051, 7810, 8974, 9940, 10780, 10934, 12820, 13916, 14102, 15620, 17395, 17948, 21868, 22435, 27335, 28204, 31409, 34790, 35255, 38269, 44870, 45511, 49357, 54670, 62818, 69580, 70510, 76538, 89740, 91022, 98714, 109340, 125636, 141020, 153076, 157045, 182044, 191345, 197428, 227555, 246785, 314090, 318577, 345499, 382690, 455110, 493570, 500621, 628180, 637154, 690998, 765380, 910220, 987140, 1001242, 1274308, 1381996, 1592885, 1727495, 2002484, 2230039, 2503105, 3185770, 3454990, 3504347, 4460078, 5006210, 6371540, 6909980, 7008694, 8920156, 10012420, 11150195, 14017388, 17521735, 22300390, 24530429, 35043470, 44600780, 49060858, 70086940, 98121716, 122652145, 245304290, 490608580]

約数ペア:

[(1, 490608580), (2, 245304290), (4, 122652145), (5, 98121716), (7, 70086940), (10, 49060858), (11, 44600780), (14, 35043470), (20, 24530429), (22, 22300390), (28, 17521735), (35, 14017388), (44, 11150195), (49, 10012420), (55, 8920156), (70, 7008694), (71, 6909980), (77, 6371540), (98, 5006210), (110, 4460078), (140, 3504347), (142, 3454990), (154, 3185770), (196, 2503105), (220, 2230039), (245, 2002484), (284, 1727495), (308, 1592885), (355, 1381996), (385, 1274308), (490, 1001242), (497, 987140), (539, 910220), (641, 765380), (710, 690998), (770, 637154), (781, 628180), (980, 500621), (994, 493570), (1078, 455110), (1282, 382690), (1420, 345499), (1540, 318577), (1562, 314090), (1988, 246785), (2156, 227555), (2485, 197428), (2564, 191345), (2695, 182044), (3124, 157045), (3205, 153076), (3479, 141020), (3905, 125636), (4487, 109340), (4970, 98714), (5390, 91022), (5467, 89740), (6410, 76538), (6958, 70510), (7051, 69580), (7810, 62818), (8974, 54670), (9940, 49357), (10780, 45511), (10934, 44870), (12820, 38269), (13916, 35255), (14102, 34790), (15620, 31409), (17395, 28204), (17948, 27335), (21868, 22435)]