20687310

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{4691}}^1$

素因数の和:4718

約数の個数: 72

約数和(自身を含む): 62581896

約数和(自身を除く): 41894586

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 4691, 9382, 14073, 23455, 28146, 32837, 42219, 46910, 65674, 70365, 84438, 98511, 140730, 164185, 197022, 211095, 229859, 295533, 328370, 422190, 459718, 492555, 591066, 689577, 985110, 1149295, 1379154, 1477665, 2068731, 2298590, 2955330, 3447885, 4137462, 6895770, 10343655, 20687310]

約数ペア:

[(1, 20687310), (2, 10343655), (3, 6895770), (5, 4137462), (6, 3447885), (7, 2955330), (9, 2298590), (10, 2068731), (14, 1477665), (15, 1379154), (18, 1149295), (21, 985110), (30, 689577), (35, 591066), (42, 492555), (45, 459718), (49, 422190), (63, 328370), (70, 295533), (90, 229859), (98, 211095), (105, 197022), (126, 164185), (147, 140730), (210, 98511), (245, 84438), (294, 70365), (315, 65674), (441, 46910), (490, 42219), (630, 32837), (735, 28146), (882, 23455), (1470, 14073), (2205, 9382), (4410, 4691)]