278782980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{9907}}^1$

素因数の和:9993

約数の個数: 96

約数和(自身を含む): 905511936

約数和(自身を除く): 626728956

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 67, 70, 84, 105, 134, 140, 201, 210, 268, 335, 402, 420, 469, 670, 804, 938, 1005, 1340, 1407, 1876, 2010, 2345, 2814, 4020, 4690, 5628, 7035, 9380, 9907, 14070, 19814, 28140, 29721, 39628, 49535, 59442, 69349, 99070, 118884, 138698, 148605, 198140, 208047, 277396, 297210, 346745, 416094, 594420, 663769, 693490, 832188, 1040235, 1327538, 1386980, 1991307, 2080470, 2655076, 3318845, 3982614, 4160940, 4646383, 6637690, 7965228, 9292766, 9956535, 13275380, 13939149, 18585532, 19913070, 23231915, 27878298, 39826140, 46463830, 55756596, 69695745, 92927660, 139391490, 278782980]

約数ペア:

[(1, 278782980), (2, 139391490), (3, 92927660), (4, 69695745), (5, 55756596), (6, 46463830), (7, 39826140), (10, 27878298), (12, 23231915), (14, 19913070), (15, 18585532), (20, 13939149), (21, 13275380), (28, 9956535), (30, 9292766), (35, 7965228), (42, 6637690), (60, 4646383), (67, 4160940), (70, 3982614), (84, 3318845), (105, 2655076), (134, 2080470), (140, 1991307), (201, 1386980), (210, 1327538), (268, 1040235), (335, 832188), (402, 693490), (420, 663769), (469, 594420), (670, 416094), (804, 346745), (938, 297210), (1005, 277396), (1340, 208047), (1407, 198140), (1876, 148605), (2010, 138698), (2345, 118884), (2814, 99070), (4020, 69349), (4690, 59442), (5628, 49535), (7035, 39628), (9380, 29721), (9907, 28140), (14070, 19814)]