688438520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{2693}}^1$

素因数の和:2805

約数の個数: 128

約数和(自身を含む): 1955197440

約数和(自身を除く): 1266758920

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 83, 88, 110, 140, 154, 166, 220, 280, 308, 332, 385, 415, 440, 581, 616, 664, 770, 830, 913, 1162, 1540, 1660, 1826, 2324, 2693, 2905, 3080, 3320, 3652, 4565, 4648, 5386, 5810, 6391, 7304, 9130, 10772, 11620, 12782, 13465, 18260, 18851, 21544, 23240, 25564, 26930, 29623, 31955, 36520, 37702, 51128, 53860, 59246, 63910, 75404, 94255, 107720, 118492, 127820, 148115, 150808, 188510, 207361, 223519, 236984, 255640, 296230, 377020, 414722, 447038, 592460, 754040, 829444, 894076, 1036805, 1117595, 1184920, 1564633, 1658888, 1788152, 2073610, 2235190, 2458709, 3129266, 4147220, 4470380, 4917418, 6258532, 7823165, 8294440, 8940760, 9834836, 12293545, 12517064, 15646330, 17210963, 19669672, 24587090, 31292660, 34421926, 49174180, 62585320, 68843852, 86054815, 98348360, 137687704, 172109630, 344219260, 688438520]

約数ペア:

[(1, 688438520), (2, 344219260), (4, 172109630), (5, 137687704), (7, 98348360), (8, 86054815), (10, 68843852), (11, 62585320), (14, 49174180), (20, 34421926), (22, 31292660), (28, 24587090), (35, 19669672), (40, 17210963), (44, 15646330), (55, 12517064), (56, 12293545), (70, 9834836), (77, 8940760), (83, 8294440), (88, 7823165), (110, 6258532), (140, 4917418), (154, 4470380), (166, 4147220), (220, 3129266), (280, 2458709), (308, 2235190), (332, 2073610), (385, 1788152), (415, 1658888), (440, 1564633), (581, 1184920), (616, 1117595), (664, 1036805), (770, 894076), (830, 829444), (913, 754040), (1162, 592460), (1540, 447038), (1660, 414722), (1826, 377020), (2324, 296230), (2693, 255640), (2905, 236984), (3080, 223519), (3320, 207361), (3652, 188510), (4565, 150808), (4648, 148115), (5386, 127820), (5810, 118492), (6391, 107720), (7304, 94255), (9130, 75404), (10772, 63910), (11620, 59246), (12782, 53860), (13465, 51128), (18260, 37702), (18851, 36520), (21544, 31955), (23240, 29623), (25564, 26930)]