28013221796

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{68813}}^1$

素因数の和:68929

約数の個数: 72

約数和(自身を含む): 59745966336

約数和(自身を除く): 31732744540

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 67, 98, 124, 134, 196, 217, 268, 434, 469, 868, 938, 1519, 1876, 2077, 3038, 3283, 4154, 6076, 6566, 8308, 13132, 14539, 29078, 58156, 68813, 101773, 137626, 203546, 275252, 407092, 481691, 963382, 1926764, 2133203, 3371837, 4266406, 4610471, 6743674, 8532812, 9220942, 13487348, 14932421, 18441884, 29864842, 32273297, 59729684, 64546594, 104526947, 129093188, 142924601, 209053894, 225913079, 285849202, 418107788, 451826158, 571698404, 903652316, 1000472207, 2000944414, 4001888828, 7003305449, 14006610898, 28013221796]

約数ペア:

[(1, 28013221796), (2, 14006610898), (4, 7003305449), (7, 4001888828), (14, 2000944414), (28, 1000472207), (31, 903652316), (49, 571698404), (62, 451826158), (67, 418107788), (98, 285849202), (124, 225913079), (134, 209053894), (196, 142924601), (217, 129093188), (268, 104526947), (434, 64546594), (469, 59729684), (868, 32273297), (938, 29864842), (1519, 18441884), (1876, 14932421), (2077, 13487348), (3038, 9220942), (3283, 8532812), (4154, 6743674), (6076, 4610471), (6566, 4266406), (8308, 3371837), (13132, 2133203), (14539, 1926764), (29078, 963382), (58156, 481691), (68813, 407092), (101773, 275252), (137626, 203546)]