20655821360

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{269}}^1\times {\mathrm{5303}}^1$

素因数の和:5766

約数の個数: 80

約数和(自身を含む): 48478772160

約数和(自身を除く): 27822950800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 269, 362, 538, 724, 905, 1076, 1345, 1448, 1810, 2152, 2690, 2896, 3620, 4304, 5303, 5380, 7240, 10606, 10760, 14480, 21212, 21520, 26515, 42424, 48689, 53030, 84848, 97378, 106060, 194756, 212120, 243445, 389512, 424240, 486890, 779024, 959843, 973780, 1426507, 1919686, 1947560, 2853014, 3839372, 3895120, 4799215, 5706028, 7132535, 7678744, 9598430, 11412056, 14265070, 15357488, 19196860, 22824112, 28530140, 38393720, 57060280, 76787440, 114120560, 258197767, 516395534, 1032791068, 1290988835, 2065582136, 2581977670, 4131164272, 5163955340, 10327910680, 20655821360]

約数ペア:

[(1, 20655821360), (2, 10327910680), (4, 5163955340), (5, 4131164272), (8, 2581977670), (10, 2065582136), (16, 1290988835), (20, 1032791068), (40, 516395534), (80, 258197767), (181, 114120560), (269, 76787440), (362, 57060280), (538, 38393720), (724, 28530140), (905, 22824112), (1076, 19196860), (1345, 15357488), (1448, 14265070), (1810, 11412056), (2152, 9598430), (2690, 7678744), (2896, 7132535), (3620, 5706028), (4304, 4799215), (5303, 3895120), (5380, 3839372), (7240, 2853014), (10606, 1947560), (10760, 1919686), (14480, 1426507), (21212, 973780), (21520, 959843), (26515, 779024), (42424, 486890), (48689, 424240), (53030, 389512), (84848, 243445), (97378, 212120), (106060, 194756)]