69972890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 142248960

約数和(自身を除く): 72276070

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 97, 130, 155, 179, 194, 310, 358, 403, 485, 806, 895, 970, 1261, 1790, 2015, 2327, 2522, 3007, 4030, 4654, 5549, 6014, 6305, 11098, 11635, 12610, 15035, 17363, 23270, 27745, 30070, 34726, 39091, 55490, 72137, 78182, 86815, 144274, 173630, 195455, 225719, 360685, 390910, 451438, 538253, 721370, 1076506, 1128595, 2257190, 2691265, 5382530, 6997289, 13994578, 34986445, 69972890]

約数ペア:

[(1, 69972890), (2, 34986445), (5, 13994578), (10, 6997289), (13, 5382530), (26, 2691265), (31, 2257190), (62, 1128595), (65, 1076506), (97, 721370), (130, 538253), (155, 451438), (179, 390910), (194, 360685), (310, 225719), (358, 195455), (403, 173630), (485, 144274), (806, 86815), (895, 78182), (970, 72137), (1261, 55490), (1790, 39091), (2015, 34726), (2327, 30070), (2522, 27745), (3007, 23270), (4030, 17363), (4654, 15035), (5549, 12610), (6014, 11635), (6305, 11098)]