80821988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{227}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 157659264

約数和(自身を除く): 76837276

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 167, 227, 334, 454, 533, 668, 908, 1066, 2132, 2171, 2951, 4342, 5902, 6847, 8684, 9307, 11804, 13694, 18614, 27388, 37228, 37909, 75818, 89011, 120991, 151636, 178022, 241982, 356044, 483964, 492817, 985634, 1554269, 1971268, 3108538, 6217076, 20205497, 40410994, 80821988]

約数ペア:

[(1, 80821988), (2, 40410994), (4, 20205497), (13, 6217076), (26, 3108538), (41, 1971268), (52, 1554269), (82, 985634), (164, 492817), (167, 483964), (227, 356044), (334, 241982), (454, 178022), (533, 151636), (668, 120991), (908, 89011), (1066, 75818), (2132, 37909), (2171, 37228), (2951, 27388), (4342, 18614), (5902, 13694), (6847, 11804), (8684, 9307)]