15678040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:465

約数の個数: 96

約数和(自身を含む): 43297200

約数和(自身を除く): 27619160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 380, 392, 421, 490, 532, 665, 760, 842, 931, 980, 1064, 1330, 1684, 1862, 1960, 2105, 2660, 2947, 3368, 3724, 4210, 4655, 5320, 5894, 7448, 7999, 8420, 9310, 11788, 14735, 15998, 16840, 18620, 20629, 23576, 29470, 31996, 37240, 39995, 41258, 55993, 58940, 63992, 79990, 82516, 103145, 111986, 117880, 159980, 165032, 206290, 223972, 279965, 319960, 391951, 412580, 447944, 559930, 783902, 825160, 1119860, 1567804, 1959755, 2239720, 3135608, 3919510, 7839020, 15678040]

約数ペア:

[(1, 15678040), (2, 7839020), (4, 3919510), (5, 3135608), (7, 2239720), (8, 1959755), (10, 1567804), (14, 1119860), (19, 825160), (20, 783902), (28, 559930), (35, 447944), (38, 412580), (40, 391951), (49, 319960), (56, 279965), (70, 223972), (76, 206290), (95, 165032), (98, 159980), (133, 117880), (140, 111986), (152, 103145), (190, 82516), (196, 79990), (245, 63992), (266, 58940), (280, 55993), (380, 41258), (392, 39995), (421, 37240), (490, 31996), (532, 29470), (665, 23576), (760, 20629), (842, 18620), (931, 16840), (980, 15998), (1064, 14735), (1330, 11788), (1684, 9310), (1862, 8420), (1960, 7999), (2105, 7448), (2660, 5894), (2947, 5320), (3368, 4655), (3724, 4210)]