278884060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4943}}^1$

素因数の和:5003

約数の個数: 96

約数和(自身を含む): 744210432

約数和(自身を除く): 465326372

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 52, 62, 65, 70, 91, 124, 130, 140, 155, 182, 217, 260, 310, 364, 403, 434, 455, 620, 806, 868, 910, 1085, 1612, 1820, 2015, 2170, 2821, 4030, 4340, 4943, 5642, 8060, 9886, 11284, 14105, 19772, 24715, 28210, 34601, 49430, 56420, 64259, 69202, 98860, 128518, 138404, 153233, 173005, 257036, 306466, 321295, 346010, 449813, 612932, 642590, 692020, 766165, 899626, 1072631, 1285180, 1532330, 1799252, 1992029, 2145262, 2249065, 3064660, 3984058, 4290524, 4498130, 5363155, 7968116, 8996260, 9960145, 10726310, 13944203, 19920290, 21452620, 27888406, 39840580, 55776812, 69721015, 139442030, 278884060]

約数ペア:

[(1, 278884060), (2, 139442030), (4, 69721015), (5, 55776812), (7, 39840580), (10, 27888406), (13, 21452620), (14, 19920290), (20, 13944203), (26, 10726310), (28, 9960145), (31, 8996260), (35, 7968116), (52, 5363155), (62, 4498130), (65, 4290524), (70, 3984058), (91, 3064660), (124, 2249065), (130, 2145262), (140, 1992029), (155, 1799252), (182, 1532330), (217, 1285180), (260, 1072631), (310, 899626), (364, 766165), (403, 692020), (434, 642590), (455, 612932), (620, 449813), (806, 346010), (868, 321295), (910, 306466), (1085, 257036), (1612, 173005), (1820, 153233), (2015, 138404), (2170, 128518), (2821, 98860), (4030, 69202), (4340, 64259), (4943, 56420), (5642, 49430), (8060, 34601), (9886, 28210), (11284, 24715), (14105, 19772)]