81820155040

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{40933}}^1$

素因数の和:41023

約数の個数: 144

約数和(自身を含む): 215106368904

約数和(自身を除く): 133286213864

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 403, 416, 496, 520, 620, 806, 961, 992, 1040, 1240, 1612, 1922, 2015, 2080, 2480, 3224, 3844, 4030, 4805, 4960, 6448, 7688, 8060, 9610, 12493, 12896, 15376, 16120, 19220, 24986, 30752, 32240, 38440, 40933, 49972, 62465, 64480, 76880, 81866, 99944, 124930, 153760, 163732, 199888, 204665, 249860, 327464, 399776, 409330, 499720, 532129, 654928, 818660, 999440, 1064258, 1268923, 1309856, 1637320, 1998880, 2128516, 2537846, 2660645, 3274640, 4257032, 5075692, 5321290, 6344615, 6549280, 8514064, 10151384, 10642580, 12689230, 16495999, 17028128, 20302768, 21285160, 25378460, 32991998, 39336613, 40605536, 42570320, 50756920, 65983996, 78673226, 82479995, 85140640, 101513840, 131967992, 157346452, 164959990, 196683065, 203027680, 263935984, 314692904, 329919980, 393366130, 511375969, 527871968, 629385808, 659839960, 786732260, 1022751938, 1258771616, 1319679920, 1573464520, 2045503876, 2556879845, 2639359840, 3146929040, 4091007752, 5113759690, 6293858080, 8182015504, 10227519380, 16364031008, 20455038760, 40910077520, 81820155040]

約数ペア:

[(1, 81820155040), (2, 40910077520), (4, 20455038760), (5, 16364031008), (8, 10227519380), (10, 8182015504), (13, 6293858080), (16, 5113759690), (20, 4091007752), (26, 3146929040), (31, 2639359840), (32, 2556879845), (40, 2045503876), (52, 1573464520), (62, 1319679920), (65, 1258771616), (80, 1022751938), (104, 786732260), (124, 659839960), (130, 629385808), (155, 527871968), (160, 511375969), (208, 393366130), (248, 329919980), (260, 314692904), (310, 263935984), (403, 203027680), (416, 196683065), (496, 164959990), (520, 157346452), (620, 131967992), (806, 101513840), (961, 85140640), (992, 82479995), (1040, 78673226), (1240, 65983996), (1612, 50756920), (1922, 42570320), (2015, 40605536), (2080, 39336613), (2480, 32991998), (3224, 25378460), (3844, 21285160), (4030, 20302768), (4805, 17028128), (4960, 16495999), (6448, 12689230), (7688, 10642580), (8060, 10151384), (9610, 8514064), (12493, 6549280), (12896, 6344615), (15376, 5321290), (16120, 5075692), (19220, 4257032), (24986, 3274640), (30752, 2660645), (32240, 2537846), (38440, 2128516), (40933, 1998880), (49972, 1637320), (62465, 1309856), (64480, 1268923), (76880, 1064258), (81866, 999440), (99944, 818660), (124930, 654928), (153760, 532129), (163732, 499720), (199888, 409330), (204665, 399776), (249860, 327464)]