81644220

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{21599}}^1$

素因数の和:21624

約数の個数: 96

約数和(自身を含む): 290304000

約数和(自身を除く): 208659780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 21599, 43198, 64797, 86396, 107995, 129594, 151193, 194391, 215990, 259188, 302386, 323985, 388782, 431980, 453579, 583173, 604772, 647970, 755965, 777564, 907158, 971955, 1166346, 1295940, 1360737, 1511930, 1814316, 1943910, 2267895, 2332692, 2721474, 2915865, 3023860, 3887820, 4082211, 4535790, 5442948, 5831730, 6803685, 8164422, 9071580, 11663460, 13607370, 16328844, 20411055, 27214740, 40822110, 81644220]

約数ペア:

[(1, 81644220), (2, 40822110), (3, 27214740), (4, 20411055), (5, 16328844), (6, 13607370), (7, 11663460), (9, 9071580), (10, 8164422), (12, 6803685), (14, 5831730), (15, 5442948), (18, 4535790), (20, 4082211), (21, 3887820), (27, 3023860), (28, 2915865), (30, 2721474), (35, 2332692), (36, 2267895), (42, 1943910), (45, 1814316), (54, 1511930), (60, 1360737), (63, 1295940), (70, 1166346), (84, 971955), (90, 907158), (105, 777564), (108, 755965), (126, 647970), (135, 604772), (140, 583173), (180, 453579), (189, 431980), (210, 388782), (252, 323985), (270, 302386), (315, 259188), (378, 215990), (420, 194391), (540, 151193), (630, 129594), (756, 107995), (945, 86396), (1260, 64797), (1890, 43198), (3780, 21599)]