18378880

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^2$

素因数の和:126

約数の個数: 96

約数和(自身を含む): 48344940

約数和(自身を除く): 29966060

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 47, 52, 64, 65, 80, 94, 104, 128, 130, 160, 188, 208, 235, 260, 320, 376, 416, 470, 520, 611, 640, 752, 832, 940, 1040, 1222, 1504, 1664, 1880, 2080, 2209, 2444, 3008, 3055, 3760, 4160, 4418, 4888, 6016, 6110, 7520, 8320, 8836, 9776, 11045, 12220, 15040, 17672, 19552, 22090, 24440, 28717, 30080, 35344, 39104, 44180, 48880, 57434, 70688, 78208, 88360, 97760, 114868, 141376, 143585, 176720, 195520, 229736, 282752, 287170, 353440, 391040, 459472, 574340, 706880, 918944, 1148680, 1413760, 1837888, 2297360, 3675776, 4594720, 9189440, 18378880]

約数ペア:

[(1, 18378880), (2, 9189440), (4, 4594720), (5, 3675776), (8, 2297360), (10, 1837888), (13, 1413760), (16, 1148680), (20, 918944), (26, 706880), (32, 574340), (40, 459472), (47, 391040), (52, 353440), (64, 287170), (65, 282752), (80, 229736), (94, 195520), (104, 176720), (128, 143585), (130, 141376), (160, 114868), (188, 97760), (208, 88360), (235, 78208), (260, 70688), (320, 57434), (376, 48880), (416, 44180), (470, 39104), (520, 35344), (611, 30080), (640, 28717), (752, 24440), (832, 22090), (940, 19552), (1040, 17672), (1222, 15040), (1504, 12220), (1664, 11045), (1880, 9776), (2080, 8836), (2209, 8320), (2444, 7520), (3008, 6110), (3055, 6016), (3760, 4888), (4160, 4418)]