28212660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{22391}}^1$

素因数の和:22413

約数の個数: 72

約数和(自身を含む): 97808256

約数和(自身を除く): 69595596

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 22391, 44782, 67173, 89564, 111955, 134346, 156737, 201519, 223910, 268692, 313474, 335865, 403038, 447820, 470211, 626948, 671730, 783685, 806076, 940422, 1007595, 1343460, 1410633, 1567370, 1880844, 2015190, 2351055, 2821266, 3134740, 4030380, 4702110, 5642532, 7053165, 9404220, 14106330, 28212660]

約数ペア:

[(1, 28212660), (2, 14106330), (3, 9404220), (4, 7053165), (5, 5642532), (6, 4702110), (7, 4030380), (9, 3134740), (10, 2821266), (12, 2351055), (14, 2015190), (15, 1880844), (18, 1567370), (20, 1410633), (21, 1343460), (28, 1007595), (30, 940422), (35, 806076), (36, 783685), (42, 671730), (45, 626948), (60, 470211), (63, 447820), (70, 403038), (84, 335865), (90, 313474), (105, 268692), (126, 223910), (140, 201519), (180, 156737), (210, 134346), (252, 111955), (315, 89564), (420, 67173), (630, 44782), (1260, 22391)]