397545560

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{563}}^1$

素因数の和:840

約数の個数: 64

約数和(自身を含む): 909619200

約数和(自身を除く): 512073640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 139, 254, 278, 508, 556, 563, 635, 695, 1016, 1112, 1126, 1270, 1390, 2252, 2540, 2780, 2815, 4504, 5080, 5560, 5630, 11260, 17653, 22520, 35306, 70612, 71501, 78257, 88265, 141224, 143002, 156514, 176530, 286004, 313028, 353060, 357505, 391285, 572008, 626056, 706120, 715010, 782570, 1430020, 1565140, 2860040, 3130280, 9938639, 19877278, 39754556, 49693195, 79509112, 99386390, 198772780, 397545560]

約数ペア:

[(1, 397545560), (2, 198772780), (4, 99386390), (5, 79509112), (8, 49693195), (10, 39754556), (20, 19877278), (40, 9938639), (127, 3130280), (139, 2860040), (254, 1565140), (278, 1430020), (508, 782570), (556, 715010), (563, 706120), (635, 626056), (695, 572008), (1016, 391285), (1112, 357505), (1126, 353060), (1270, 313028), (1390, 286004), (2252, 176530), (2540, 156514), (2780, 143002), (2815, 141224), (4504, 88265), (5080, 78257), (5560, 71501), (5630, 70612), (11260, 35306), (17653, 22520)]