81653390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1693}}^1$

素因数の和:1773

約数の個数: 64

約数和(自身を含む): 184415616

約数和(自身を除く): 102762226

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 53, 65, 70, 91, 106, 130, 182, 265, 371, 455, 530, 689, 742, 910, 1378, 1693, 1855, 3386, 3445, 3710, 4823, 6890, 8465, 9646, 11851, 16930, 22009, 23702, 24115, 44018, 48230, 59255, 89729, 110045, 118510, 154063, 179458, 220090, 308126, 448645, 628103, 770315, 897290, 1166477, 1256206, 1540630, 2332954, 3140515, 5832385, 6281030, 8165339, 11664770, 16330678, 40826695, 81653390]

約数ペア:

[(1, 81653390), (2, 40826695), (5, 16330678), (7, 11664770), (10, 8165339), (13, 6281030), (14, 5832385), (26, 3140515), (35, 2332954), (53, 1540630), (65, 1256206), (70, 1166477), (91, 897290), (106, 770315), (130, 628103), (182, 448645), (265, 308126), (371, 220090), (455, 179458), (530, 154063), (689, 118510), (742, 110045), (910, 89729), (1378, 59255), (1693, 48230), (1855, 44018), (3386, 24115), (3445, 23702), (3710, 22009), (4823, 16930), (6890, 11851), (8465, 9646)]