260085040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{199}}^1$

素因数の和:291

約数の個数: 120

約数和(自身を含む): 664912800

約数和(自身を除く): 404827760

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 199, 248, 272, 310, 340, 398, 496, 527, 620, 680, 796, 961, 995, 1054, 1240, 1360, 1592, 1922, 1990, 2108, 2480, 2635, 3184, 3383, 3844, 3980, 4216, 4805, 5270, 6169, 6766, 7688, 7960, 8432, 9610, 10540, 12338, 13532, 15376, 15920, 16337, 16915, 19220, 21080, 24676, 27064, 30845, 32674, 33830, 38440, 42160, 49352, 54128, 61690, 65348, 67660, 76880, 81685, 98704, 104873, 123380, 130696, 135320, 163370, 191239, 209746, 246760, 261392, 270640, 326740, 382478, 419492, 493520, 524365, 653480, 764956, 838984, 956195, 1048730, 1306960, 1529912, 1677968, 1912390, 2097460, 3059824, 3251063, 3824780, 4194920, 6502126, 7649560, 8389840, 13004252, 15299120, 16255315, 26008504, 32510630, 52017008, 65021260, 130042520, 260085040]

約数ペア:

[(1, 260085040), (2, 130042520), (4, 65021260), (5, 52017008), (8, 32510630), (10, 26008504), (16, 16255315), (17, 15299120), (20, 13004252), (31, 8389840), (34, 7649560), (40, 6502126), (62, 4194920), (68, 3824780), (80, 3251063), (85, 3059824), (124, 2097460), (136, 1912390), (155, 1677968), (170, 1529912), (199, 1306960), (248, 1048730), (272, 956195), (310, 838984), (340, 764956), (398, 653480), (496, 524365), (527, 493520), (620, 419492), (680, 382478), (796, 326740), (961, 270640), (995, 261392), (1054, 246760), (1240, 209746), (1360, 191239), (1592, 163370), (1922, 135320), (1990, 130696), (2108, 123380), (2480, 104873), (2635, 98704), (3184, 81685), (3383, 76880), (3844, 67660), (3980, 65348), (4216, 61690), (4805, 54128), (5270, 49352), (6169, 42160), (6766, 38440), (7688, 33830), (7960, 32674), (8432, 30845), (9610, 27064), (10540, 24676), (12338, 21080), (13532, 19220), (15376, 16915), (15920, 16337)]