20151248

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5099}}^1$

素因数の和:5139

約数の個数: 40

約数和(自身を含む): 44268000

約数和(自身を除く): 24116752

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 5099, 10198, 20396, 40792, 66287, 81584, 96881, 132574, 193762, 265148, 387524, 530296, 775048, 1060592, 1259453, 1550096, 2518906, 5037812, 10075624, 20151248]

約数ペア:

[(1, 20151248), (2, 10075624), (4, 5037812), (8, 2518906), (13, 1550096), (16, 1259453), (19, 1060592), (26, 775048), (38, 530296), (52, 387524), (76, 265148), (104, 193762), (152, 132574), (208, 96881), (247, 81584), (304, 66287), (494, 40792), (988, 20396), (1976, 10198), (3952, 5099)]