15715280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:257

約数の個数: 120

約数和(自身を含む): 44952480

約数和(自身を除く): 29237200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 190, 196, 211, 245, 266, 280, 304, 380, 392, 422, 490, 532, 560, 665, 760, 784, 844, 931, 980, 1055, 1064, 1330, 1477, 1520, 1688, 1862, 1960, 2110, 2128, 2660, 2954, 3376, 3724, 3920, 4009, 4220, 4655, 5320, 5908, 7385, 7448, 8018, 8440, 9310, 10339, 10640, 11816, 14770, 14896, 16036, 16880, 18620, 20045, 20678, 23632, 28063, 29540, 32072, 37240, 40090, 41356, 51695, 56126, 59080, 64144, 74480, 80180, 82712, 103390, 112252, 118160, 140315, 160360, 165424, 196441, 206780, 224504, 280630, 320720, 392882, 413560, 449008, 561260, 785764, 827120, 982205, 1122520, 1571528, 1964410, 2245040, 3143056, 3928820, 7857640, 15715280]

約数ペア:

[(1, 15715280), (2, 7857640), (4, 3928820), (5, 3143056), (7, 2245040), (8, 1964410), (10, 1571528), (14, 1122520), (16, 982205), (19, 827120), (20, 785764), (28, 561260), (35, 449008), (38, 413560), (40, 392882), (49, 320720), (56, 280630), (70, 224504), (76, 206780), (80, 196441), (95, 165424), (98, 160360), (112, 140315), (133, 118160), (140, 112252), (152, 103390), (190, 82712), (196, 80180), (211, 74480), (245, 64144), (266, 59080), (280, 56126), (304, 51695), (380, 41356), (392, 40090), (422, 37240), (490, 32072), (532, 29540), (560, 28063), (665, 23632), (760, 20678), (784, 20045), (844, 18620), (931, 16880), (980, 16036), (1055, 14896), (1064, 14770), (1330, 11816), (1477, 10640), (1520, 10339), (1688, 9310), (1862, 8440), (1960, 8018), (2110, 7448), (2128, 7385), (2660, 5908), (2954, 5320), (3376, 4655), (3724, 4220), (3920, 4009)]