19888112

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:537

約数の個数: 40

約数和(自身を含む): 40271232

約数和(自身を除く): 20383120

約数列:

[1, 2, 4, 8, 16, 31, 62, 101, 124, 202, 248, 397, 404, 496, 794, 808, 1588, 1616, 3131, 3176, 6262, 6352, 12307, 12524, 24614, 25048, 40097, 49228, 50096, 80194, 98456, 160388, 196912, 320776, 641552, 1243007, 2486014, 4972028, 9944056, 19888112]

約数ペア:

[(1, 19888112), (2, 9944056), (4, 4972028), (8, 2486014), (16, 1243007), (31, 641552), (62, 320776), (101, 196912), (124, 160388), (202, 98456), (248, 80194), (397, 50096), (404, 49228), (496, 40097), (794, 25048), (808, 24614), (1588, 12524), (1616, 12307), (3131, 6352), (3176, 6262)]