84678860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1217}}^1$

素因数の和:1311

約数の個数: 72

約数和(自身を含む): 209944224

約数和(自身を除く): 125265364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 245, 284, 355, 490, 497, 710, 980, 994, 1217, 1420, 1988, 2434, 2485, 3479, 4868, 4970, 6085, 6958, 8519, 9940, 12170, 13916, 17038, 17395, 24340, 34076, 34790, 42595, 59633, 69580, 85190, 86407, 119266, 170380, 172814, 238532, 298165, 345628, 432035, 596330, 604849, 864070, 1192660, 1209698, 1728140, 2419396, 3024245, 4233943, 6048490, 8467886, 12096980, 16935772, 21169715, 42339430, 84678860]

約数ペア:

[(1, 84678860), (2, 42339430), (4, 21169715), (5, 16935772), (7, 12096980), (10, 8467886), (14, 6048490), (20, 4233943), (28, 3024245), (35, 2419396), (49, 1728140), (70, 1209698), (71, 1192660), (98, 864070), (140, 604849), (142, 596330), (196, 432035), (245, 345628), (284, 298165), (355, 238532), (490, 172814), (497, 170380), (710, 119266), (980, 86407), (994, 85190), (1217, 69580), (1420, 59633), (1988, 42595), (2434, 34790), (2485, 34076), (3479, 24340), (4868, 17395), (4970, 17038), (6085, 13916), (6958, 12170), (8519, 9940)]