155220903940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{509}}^1\times {\mathrm{2063}}^1$

素因数の和:2989

約数の個数: 96

約数和(自身を含む): 344844864000

約数和(自身を除く): 189623960060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 389, 509, 778, 1018, 1556, 1945, 2036, 2063, 2545, 3890, 4126, 5090, 7391, 7780, 8252, 9671, 10180, 10315, 14782, 19342, 20630, 29564, 36955, 38684, 39197, 41260, 48355, 73910, 78394, 96710, 147820, 156788, 193420, 195985, 198001, 391970, 396002, 783940, 792004, 802507, 990005, 1050067, 1605014, 1980010, 2100134, 3210028, 3762019, 3960020, 4012535, 4200268, 5250335, 7524038, 8025070, 10500670, 15048076, 15247633, 16050140, 18810095, 19951273, 21001340, 30495266, 37620190, 39902546, 60990532, 75240380, 76238165, 79805092, 99756365, 152476330, 199512730, 304952660, 399025460, 408476063, 816952126, 1633904252, 2042380315, 4084760630, 7761045197, 8169521260, 15522090394, 31044180788, 38805225985, 77610451970, 155220903940]

約数ペア:

[(1, 155220903940), (2, 77610451970), (4, 38805225985), (5, 31044180788), (10, 15522090394), (19, 8169521260), (20, 7761045197), (38, 4084760630), (76, 2042380315), (95, 1633904252), (190, 816952126), (380, 408476063), (389, 399025460), (509, 304952660), (778, 199512730), (1018, 152476330), (1556, 99756365), (1945, 79805092), (2036, 76238165), (2063, 75240380), (2545, 60990532), (3890, 39902546), (4126, 37620190), (5090, 30495266), (7391, 21001340), (7780, 19951273), (8252, 18810095), (9671, 16050140), (10180, 15247633), (10315, 15048076), (14782, 10500670), (19342, 8025070), (20630, 7524038), (29564, 5250335), (36955, 4200268), (38684, 4012535), (39197, 3960020), (41260, 3762019), (48355, 3210028), (73910, 2100134), (78394, 1980010), (96710, 1605014), (147820, 1050067), (156788, 990005), (193420, 802507), (195985, 792004), (198001, 783940), (391970, 396002)]