18837186920

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{97159}}^1$

素因数の和:97338

約数の個数: 64

約数和(自身を含む): 43861910400

約数和(自身を除く): 25024723480

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 131, 148, 185, 262, 296, 370, 524, 655, 740, 1048, 1310, 1480, 2620, 4847, 5240, 9694, 19388, 24235, 38776, 48470, 96940, 97159, 193880, 194318, 388636, 485795, 777272, 971590, 1943180, 3594883, 3886360, 7189766, 12727829, 14379532, 17974415, 25455658, 28759064, 35948830, 50911316, 63639145, 71897660, 101822632, 127278290, 143795320, 254556580, 470929673, 509113160, 941859346, 1883718692, 2354648365, 3767437384, 4709296730, 9418593460, 18837186920]

約数ペア:

[(1, 18837186920), (2, 9418593460), (4, 4709296730), (5, 3767437384), (8, 2354648365), (10, 1883718692), (20, 941859346), (37, 509113160), (40, 470929673), (74, 254556580), (131, 143795320), (148, 127278290), (185, 101822632), (262, 71897660), (296, 63639145), (370, 50911316), (524, 35948830), (655, 28759064), (740, 25455658), (1048, 17974415), (1310, 14379532), (1480, 12727829), (2620, 7189766), (4847, 3886360), (5240, 3594883), (9694, 1943180), (19388, 971590), (24235, 777272), (38776, 485795), (48470, 388636), (96940, 194318), (97159, 193880)]