20354152

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{383}}^1$

素因数の和:482

約数の個数: 64

約数和(自身を含む): 47738880

約数和(自身を除く): 27384728

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 73, 91, 104, 146, 182, 292, 364, 383, 511, 584, 728, 766, 949, 1022, 1532, 1898, 2044, 2681, 3064, 3796, 4088, 4979, 5362, 6643, 7592, 9958, 10724, 13286, 19916, 21448, 26572, 27959, 34853, 39832, 53144, 55918, 69706, 111836, 139412, 195713, 223672, 278824, 363467, 391426, 726934, 782852, 1453868, 1565704, 2544269, 2907736, 5088538, 10177076, 20354152]

約数ペア:

[(1, 20354152), (2, 10177076), (4, 5088538), (7, 2907736), (8, 2544269), (13, 1565704), (14, 1453868), (26, 782852), (28, 726934), (52, 391426), (56, 363467), (73, 278824), (91, 223672), (104, 195713), (146, 139412), (182, 111836), (292, 69706), (364, 55918), (383, 53144), (511, 39832), (584, 34853), (728, 27959), (766, 26572), (949, 21448), (1022, 19916), (1532, 13286), (1898, 10724), (2044, 9958), (2681, 7592), (3064, 6643), (3796, 5362), (4088, 4979)]