131651920

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{563}}^1$

素因数の和:692

約数の個数: 80

約数和(自身を含む): 318908160

約数和(自身を除く): 187256240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 79, 80, 148, 158, 185, 296, 316, 370, 395, 563, 592, 632, 740, 790, 1126, 1264, 1480, 1580, 2252, 2815, 2923, 2960, 3160, 4504, 5630, 5846, 6320, 9008, 11260, 11692, 14615, 20831, 22520, 23384, 29230, 41662, 44477, 45040, 46768, 58460, 83324, 88954, 104155, 116920, 166648, 177908, 208310, 222385, 233840, 333296, 355816, 416620, 444770, 711632, 833240, 889540, 1645649, 1666480, 1779080, 3291298, 3558160, 6582596, 8228245, 13165192, 16456490, 26330384, 32912980, 65825960, 131651920]

約数ペア:

[(1, 131651920), (2, 65825960), (4, 32912980), (5, 26330384), (8, 16456490), (10, 13165192), (16, 8228245), (20, 6582596), (37, 3558160), (40, 3291298), (74, 1779080), (79, 1666480), (80, 1645649), (148, 889540), (158, 833240), (185, 711632), (296, 444770), (316, 416620), (370, 355816), (395, 333296), (563, 233840), (592, 222385), (632, 208310), (740, 177908), (790, 166648), (1126, 116920), (1264, 104155), (1480, 88954), (1580, 83324), (2252, 58460), (2815, 46768), (2923, 45040), (2960, 44477), (3160, 41662), (4504, 29230), (5630, 23384), (5846, 22520), (6320, 20831), (9008, 14615), (11260, 11692)]