80994580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{337}}^1$

素因数の和:604

約数の個数: 48

約数和(自身を含む): 174270096

約数和(自身を除く): 93275516

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 197, 244, 305, 337, 394, 610, 674, 788, 985, 1220, 1348, 1685, 1970, 3370, 3940, 6740, 12017, 20557, 24034, 41114, 48068, 60085, 66389, 82228, 102785, 120170, 132778, 205570, 240340, 265556, 331945, 411140, 663890, 1327780, 4049729, 8099458, 16198916, 20248645, 40497290, 80994580]

約数ペア:

[(1, 80994580), (2, 40497290), (4, 20248645), (5, 16198916), (10, 8099458), (20, 4049729), (61, 1327780), (122, 663890), (197, 411140), (244, 331945), (305, 265556), (337, 240340), (394, 205570), (610, 132778), (674, 120170), (788, 102785), (985, 82228), (1220, 66389), (1348, 60085), (1685, 48068), (1970, 41114), (3370, 24034), (3940, 20557), (6740, 12017)]