251444480

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:265

約数の個数: 216

約数和(自身を含む): 740990880

約数和(自身を除く): 489546400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 64, 70, 76, 80, 95, 98, 112, 128, 133, 140, 152, 160, 190, 196, 211, 224, 245, 256, 266, 280, 304, 320, 380, 392, 422, 448, 490, 532, 560, 608, 640, 665, 760, 784, 844, 896, 931, 980, 1055, 1064, 1120, 1216, 1280, 1330, 1477, 1520, 1568, 1688, 1792, 1862, 1960, 2110, 2128, 2240, 2432, 2660, 2954, 3040, 3136, 3376, 3724, 3920, 4009, 4220, 4256, 4480, 4655, 4864, 5320, 5908, 6080, 6272, 6752, 7385, 7448, 7840, 8018, 8440, 8512, 8960, 9310, 10339, 10640, 11816, 12160, 12544, 13504, 14770, 14896, 15680, 16036, 16880, 17024, 18620, 20045, 20678, 21280, 23632, 24320, 27008, 28063, 29540, 29792, 31360, 32072, 33760, 34048, 37240, 40090, 41356, 42560, 47264, 51695, 54016, 56126, 59080, 59584, 62720, 64144, 67520, 74480, 80180, 82712, 85120, 94528, 103390, 112252, 118160, 119168, 128288, 135040, 140315, 148960, 160360, 165424, 170240, 189056, 196441, 206780, 224504, 236320, 238336, 256576, 270080, 280630, 297920, 320720, 330848, 378112, 392882, 413560, 449008, 472640, 513152, 561260, 595840, 641440, 661696, 785764, 827120, 898016, 945280, 982205, 1026304, 1122520, 1191680, 1282880, 1323392, 1571528, 1654240, 1796032, 1890560, 1964410, 2245040, 2565760, 2646784, 3143056, 3308480, 3592064, 3928820, 4490080, 5131520, 6286112, 6616960, 7184128, 7857640, 8980160, 12572224, 13233920, 15715280, 17960320, 25144448, 31430560, 35920640, 50288896, 62861120, 125722240, 251444480]

約数ペア:

[(1, 251444480), (2, 125722240), (4, 62861120), (5, 50288896), (7, 35920640), (8, 31430560), (10, 25144448), (14, 17960320), (16, 15715280), (19, 13233920), (20, 12572224), (28, 8980160), (32, 7857640), (35, 7184128), (38, 6616960), (40, 6286112), (49, 5131520), (56, 4490080), (64, 3928820), (70, 3592064), (76, 3308480), (80, 3143056), (95, 2646784), (98, 2565760), (112, 2245040), (128, 1964410), (133, 1890560), (140, 1796032), (152, 1654240), (160, 1571528), (190, 1323392), (196, 1282880), (211, 1191680), (224, 1122520), (245, 1026304), (256, 982205), (266, 945280), (280, 898016), (304, 827120), (320, 785764), (380, 661696), (392, 641440), (422, 595840), (448, 561260), (490, 513152), (532, 472640), (560, 449008), (608, 413560), (640, 392882), (665, 378112), (760, 330848), (784, 320720), (844, 297920), (896, 280630), (931, 270080), (980, 256576), (1055, 238336), (1064, 236320), (1120, 224504), (1216, 206780), (1280, 196441), (1330, 189056), (1477, 170240), (1520, 165424), (1568, 160360), (1688, 148960), (1792, 140315), (1862, 135040), (1960, 128288), (2110, 119168), (2128, 118160), (2240, 112252), (2432, 103390), (2660, 94528), (2954, 85120), (3040, 82712), (3136, 80180), (3376, 74480), (3724, 67520), (3920, 64144), (4009, 62720), (4220, 59584), (4256, 59080), (4480, 56126), (4655, 54016), (4864, 51695), (5320, 47264), (5908, 42560), (6080, 41356), (6272, 40090), (6752, 37240), (7385, 34048), (7448, 33760), (7840, 32072), (8018, 31360), (8440, 29792), (8512, 29540), (8960, 28063), (9310, 27008), (10339, 24320), (10640, 23632), (11816, 21280), (12160, 20678), (12544, 20045), (13504, 18620), (14770, 17024), (14896, 16880), (15680, 16036)]