18291566920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2027}}^1\times {\mathrm{20509}}^1$

素因数の和:22558

約数の個数: 64

約数和(自身を含む): 44921822400

約数和(自身を除く): 26630255480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 2027, 4054, 8108, 10135, 16216, 20270, 20509, 22297, 40540, 41018, 44594, 81080, 82036, 89188, 102545, 111485, 164072, 178376, 205090, 222970, 225599, 410180, 445940, 451198, 820360, 891880, 902396, 1127995, 1804792, 2255990, 4511980, 9023960, 41571743, 83143486, 166286972, 207858715, 332573944, 415717430, 457289173, 831434860, 914578346, 1662869720, 1829156692, 2286445865, 3658313384, 4572891730, 9145783460, 18291566920]

約数ペア:

[(1, 18291566920), (2, 9145783460), (4, 4572891730), (5, 3658313384), (8, 2286445865), (10, 1829156692), (11, 1662869720), (20, 914578346), (22, 831434860), (40, 457289173), (44, 415717430), (55, 332573944), (88, 207858715), (110, 166286972), (220, 83143486), (440, 41571743), (2027, 9023960), (4054, 4511980), (8108, 2255990), (10135, 1804792), (16216, 1127995), (20270, 902396), (20509, 891880), (22297, 820360), (40540, 451198), (41018, 445940), (44594, 410180), (81080, 225599), (82036, 222970), (89188, 205090), (102545, 178376), (111485, 164072)]