20210565320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1\times {\mathrm{5273}}^1$

素因数の和:5607

約数の個数: 128

約数和(自身を含む): 51399982080

約数和(自身を除く): 31189416760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 281, 310, 341, 440, 562, 620, 682, 1124, 1240, 1364, 1405, 1705, 2248, 2728, 2810, 3091, 3410, 5273, 5620, 6182, 6820, 8711, 10546, 11240, 12364, 13640, 15455, 17422, 21092, 24728, 26365, 30910, 34844, 42184, 43555, 52730, 58003, 61820, 69688, 87110, 95821, 105460, 116006, 123640, 163463, 174220, 191642, 210920, 232012, 290015, 326926, 348440, 383284, 464024, 479105, 580030, 653852, 766568, 817315, 958210, 1160060, 1307704, 1481713, 1634630, 1798093, 1916420, 2320120, 2963426, 3269260, 3596186, 3832840, 5926852, 6538520, 7192372, 7408565, 8990465, 11853704, 14384744, 14817130, 16298843, 17980930, 29634260, 32597686, 35961860, 45933103, 59268520, 65195372, 71923720, 81494215, 91866206, 130390744, 162988430, 183732412, 229665515, 325976860, 367464824, 459331030, 505264133, 651953720, 918662060, 1010528266, 1837324120, 2021056532, 2526320665, 4042113064, 5052641330, 10105282660, 20210565320]

約数ペア:

[(1, 20210565320), (2, 10105282660), (4, 5052641330), (5, 4042113064), (8, 2526320665), (10, 2021056532), (11, 1837324120), (20, 1010528266), (22, 918662060), (31, 651953720), (40, 505264133), (44, 459331030), (55, 367464824), (62, 325976860), (88, 229665515), (110, 183732412), (124, 162988430), (155, 130390744), (220, 91866206), (248, 81494215), (281, 71923720), (310, 65195372), (341, 59268520), (440, 45933103), (562, 35961860), (620, 32597686), (682, 29634260), (1124, 17980930), (1240, 16298843), (1364, 14817130), (1405, 14384744), (1705, 11853704), (2248, 8990465), (2728, 7408565), (2810, 7192372), (3091, 6538520), (3410, 5926852), (5273, 3832840), (5620, 3596186), (6182, 3269260), (6820, 2963426), (8711, 2320120), (10546, 1916420), (11240, 1798093), (12364, 1634630), (13640, 1481713), (15455, 1307704), (17422, 1160060), (21092, 958210), (24728, 817315), (26365, 766568), (30910, 653852), (34844, 580030), (42184, 479105), (43555, 464024), (52730, 383284), (58003, 348440), (61820, 326926), (69688, 290015), (87110, 232012), (95821, 210920), (105460, 191642), (116006, 174220), (123640, 163463)]