78430920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:375

約数の個数: 128

約数和(自身を含む): 248451840

約数和(自身を除く): 170020920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 157, 181, 184, 230, 276, 314, 345, 362, 460, 471, 543, 552, 628, 690, 724, 785, 905, 920, 942, 1086, 1256, 1380, 1448, 1570, 1810, 1884, 2172, 2355, 2715, 2760, 3140, 3611, 3620, 3768, 4163, 4344, 4710, 5430, 6280, 7222, 7240, 8326, 9420, 10833, 10860, 12489, 14444, 16652, 18055, 18840, 20815, 21666, 21720, 24978, 28417, 28888, 33304, 36110, 41630, 43332, 49956, 54165, 56834, 62445, 72220, 83260, 85251, 86664, 99912, 108330, 113668, 124890, 142085, 144440, 166520, 170502, 216660, 227336, 249780, 284170, 341004, 426255, 433320, 499560, 568340, 653591, 682008, 852510, 1136680, 1307182, 1705020, 1960773, 2614364, 3267955, 3410040, 3921546, 5228728, 6535910, 7843092, 9803865, 13071820, 15686184, 19607730, 26143640, 39215460, 78430920]

約数ペア:

[(1, 78430920), (2, 39215460), (3, 26143640), (4, 19607730), (5, 15686184), (6, 13071820), (8, 9803865), (10, 7843092), (12, 6535910), (15, 5228728), (20, 3921546), (23, 3410040), (24, 3267955), (30, 2614364), (40, 1960773), (46, 1705020), (60, 1307182), (69, 1136680), (92, 852510), (115, 682008), (120, 653591), (138, 568340), (157, 499560), (181, 433320), (184, 426255), (230, 341004), (276, 284170), (314, 249780), (345, 227336), (362, 216660), (460, 170502), (471, 166520), (543, 144440), (552, 142085), (628, 124890), (690, 113668), (724, 108330), (785, 99912), (905, 86664), (920, 85251), (942, 83260), (1086, 72220), (1256, 62445), (1380, 56834), (1448, 54165), (1570, 49956), (1810, 43332), (1884, 41630), (2172, 36110), (2355, 33304), (2715, 28888), (2760, 28417), (3140, 24978), (3611, 21720), (3620, 21666), (3768, 20815), (4163, 18840), (4344, 18055), (4710, 16652), (5430, 14444), (6280, 12489), (7222, 10860), (7240, 10833), (8326, 9420)]