81488708

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{349}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 169344000

約数和(自身を除く): 87855292

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 269, 349, 434, 538, 698, 868, 1076, 1396, 1883, 2443, 3766, 4886, 7532, 8339, 9772, 10819, 16678, 21638, 33356, 43276, 58373, 75733, 93881, 116746, 151466, 187762, 233492, 302932, 375524, 657167, 1314334, 2628668, 2910311, 5820622, 11641244, 20372177, 40744354, 81488708]

約数ペア:

[(1, 81488708), (2, 40744354), (4, 20372177), (7, 11641244), (14, 5820622), (28, 2910311), (31, 2628668), (62, 1314334), (124, 657167), (217, 375524), (269, 302932), (349, 233492), (434, 187762), (538, 151466), (698, 116746), (868, 93881), (1076, 75733), (1396, 58373), (1883, 43276), (2443, 33356), (3766, 21638), (4886, 16678), (7532, 10819), (8339, 9772)]