18711680

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^2\times {\mathrm{173}}^1$

素因数の和:218

約数の個数: 96

約数和(自身を含む): 48718260

約数和(自身を除く): 30006580

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 173, 208, 260, 320, 338, 346, 416, 520, 640, 676, 692, 832, 845, 865, 1040, 1352, 1384, 1664, 1690, 1730, 2080, 2249, 2704, 2768, 3380, 3460, 4160, 4498, 5408, 5536, 6760, 6920, 8320, 8996, 10816, 11072, 11245, 13520, 13840, 17992, 21632, 22144, 22490, 27040, 27680, 29237, 35984, 44980, 54080, 55360, 58474, 71968, 89960, 108160, 110720, 116948, 143936, 146185, 179920, 233896, 287872, 292370, 359840, 467792, 584740, 719680, 935584, 1169480, 1439360, 1871168, 2338960, 3742336, 4677920, 9355840, 18711680]

約数ペア:

[(1, 18711680), (2, 9355840), (4, 4677920), (5, 3742336), (8, 2338960), (10, 1871168), (13, 1439360), (16, 1169480), (20, 935584), (26, 719680), (32, 584740), (40, 467792), (52, 359840), (64, 292370), (65, 287872), (80, 233896), (104, 179920), (128, 146185), (130, 143936), (160, 116948), (169, 110720), (173, 108160), (208, 89960), (260, 71968), (320, 58474), (338, 55360), (346, 54080), (416, 44980), (520, 35984), (640, 29237), (676, 27680), (692, 27040), (832, 22490), (845, 22144), (865, 21632), (1040, 17992), (1352, 13840), (1384, 13520), (1664, 11245), (1690, 11072), (1730, 10816), (2080, 8996), (2249, 8320), (2704, 6920), (2768, 6760), (3380, 5536), (3460, 5408), (4160, 4498)]