1990763760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{436571}}^1$

素因数の和:436606

約数の個数: 80

約数和(自身を含む): 6496191360

約数和(自身を除く): 4505427600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 436571, 873142, 1309713, 1746284, 2182855, 2619426, 3492568, 4365710, 5238852, 6548565, 6985136, 8294849, 8731420, 10477704, 13097130, 16589698, 17462840, 20955408, 24884547, 26194260, 33179396, 34925680, 41474245, 49769094, 52388520, 66358792, 82948490, 99538188, 104777040, 124422735, 132717584, 165896980, 199076376, 248845470, 331793960, 398152752, 497690940, 663587920, 995381880, 1990763760]

約数ペア:

[(1, 1990763760), (2, 995381880), (3, 663587920), (4, 497690940), (5, 398152752), (6, 331793960), (8, 248845470), (10, 199076376), (12, 165896980), (15, 132717584), (16, 124422735), (19, 104777040), (20, 99538188), (24, 82948490), (30, 66358792), (38, 52388520), (40, 49769094), (48, 41474245), (57, 34925680), (60, 33179396), (76, 26194260), (80, 24884547), (95, 20955408), (114, 17462840), (120, 16589698), (152, 13097130), (190, 10477704), (228, 8731420), (240, 8294849), (285, 6985136), (304, 6548565), (380, 5238852), (456, 4365710), (570, 3492568), (760, 2619426), (912, 2182855), (1140, 1746284), (1520, 1309713), (2280, 873142), (4560, 436571)]