28403265280

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1706927}}^1$

素因数の和:1706961

約数の個数: 72

約数和(自身を含む): 73268177472

約数和(自身を除く): 44864912192

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 16640, 1706927, 3413854, 6827708, 8534635, 13655416, 17069270, 22190051, 27310832, 34138540, 44380102, 54621664, 68277080, 88760204, 109243328, 110950255, 136554160, 177520408, 218486656, 221900510, 273108320, 355040816, 436973312, 443801020, 546216640, 710081632, 887602040, 1092433280, 1420163264, 1775204080, 2184866560, 2840326528, 3550408160, 5680653056, 7100816320, 14201632640, 28403265280]

約数ペア:

[(1, 28403265280), (2, 14201632640), (4, 7100816320), (5, 5680653056), (8, 3550408160), (10, 2840326528), (13, 2184866560), (16, 1775204080), (20, 1420163264), (26, 1092433280), (32, 887602040), (40, 710081632), (52, 546216640), (64, 443801020), (65, 436973312), (80, 355040816), (104, 273108320), (128, 221900510), (130, 218486656), (160, 177520408), (208, 136554160), (256, 110950255), (260, 109243328), (320, 88760204), (416, 68277080), (520, 54621664), (640, 44380102), (832, 34138540), (1040, 27310832), (1280, 22190051), (1664, 17069270), (2080, 13655416), (3328, 8534635), (4160, 6827708), (8320, 3413854), (16640, 1706927)]