321899686820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{547}}^1\times {\mathrm{19603}}^1$

素因数の和:20257

約数の個数: 96

約数和(自身を含む): 721929062400

約数和(自身を除く): 400029375580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 547, 790, 1094, 1501, 1580, 2188, 2735, 3002, 5470, 6004, 7505, 10393, 10940, 15010, 19603, 20786, 30020, 39206, 41572, 43213, 51965, 78412, 86426, 98015, 103930, 172852, 196030, 207860, 216065, 372457, 392060, 432130, 744914, 821047, 864260, 1489828, 1548637, 1642094, 1862285, 3097274, 3284188, 3724570, 4105235, 6194548, 7449140, 7743185, 8210470, 10722841, 15486370, 16420940, 21445682, 29424103, 30972740, 42891364, 53614205, 58848206, 107228410, 117696412, 147120515, 203733979, 214456820, 294241030, 407467958, 588482060, 814935916, 847104439, 1018669895, 1694208878, 2037339790, 3388417756, 4074679580, 4235522195, 8471044390, 16094984341, 16942088780, 32189968682, 64379937364, 80474921705, 160949843410, 321899686820]

約数ペア:

[(1, 321899686820), (2, 160949843410), (4, 80474921705), (5, 64379937364), (10, 32189968682), (19, 16942088780), (20, 16094984341), (38, 8471044390), (76, 4235522195), (79, 4074679580), (95, 3388417756), (158, 2037339790), (190, 1694208878), (316, 1018669895), (380, 847104439), (395, 814935916), (547, 588482060), (790, 407467958), (1094, 294241030), (1501, 214456820), (1580, 203733979), (2188, 147120515), (2735, 117696412), (3002, 107228410), (5470, 58848206), (6004, 53614205), (7505, 42891364), (10393, 30972740), (10940, 29424103), (15010, 21445682), (19603, 16420940), (20786, 15486370), (30020, 10722841), (39206, 8210470), (41572, 7743185), (43213, 7449140), (51965, 6194548), (78412, 4105235), (86426, 3724570), (98015, 3284188), (103930, 3097274), (172852, 1862285), (196030, 1642094), (207860, 1548637), (216065, 1489828), (372457, 864260), (392060, 821047), (432130, 744914)]