81913980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{263}}^1$

素因数の和:483

約数の個数: 96

約数和(自身を含む): 239500800

約数和(自身を除く): 157586820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 179, 263, 290, 348, 358, 435, 526, 537, 580, 716, 789, 870, 895, 1052, 1074, 1315, 1578, 1740, 1790, 2148, 2630, 2685, 3156, 3580, 3945, 5191, 5260, 5370, 7627, 7890, 10382, 10740, 15254, 15573, 15780, 20764, 22881, 25955, 30508, 31146, 38135, 45762, 47077, 51910, 62292, 76270, 77865, 91524, 94154, 103820, 114405, 141231, 152540, 155730, 188308, 228810, 235385, 282462, 311460, 457620, 470770, 564924, 706155, 941540, 1365233, 1412310, 2730466, 2824620, 4095699, 5460932, 6826165, 8191398, 13652330, 16382796, 20478495, 27304660, 40956990, 81913980]

約数ペア:

[(1, 81913980), (2, 40956990), (3, 27304660), (4, 20478495), (5, 16382796), (6, 13652330), (10, 8191398), (12, 6826165), (15, 5460932), (20, 4095699), (29, 2824620), (30, 2730466), (58, 1412310), (60, 1365233), (87, 941540), (116, 706155), (145, 564924), (174, 470770), (179, 457620), (263, 311460), (290, 282462), (348, 235385), (358, 228810), (435, 188308), (526, 155730), (537, 152540), (580, 141231), (716, 114405), (789, 103820), (870, 94154), (895, 91524), (1052, 77865), (1074, 76270), (1315, 62292), (1578, 51910), (1740, 47077), (1790, 45762), (2148, 38135), (2630, 31146), (2685, 30508), (3156, 25955), (3580, 22881), (3945, 20764), (5191, 15780), (5260, 15573), (5370, 15254), (7627, 10740), (7890, 10382)]