646539165

素因数分解:

$3^6\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1993}}^1$

素因数の和:2105

約数の個数: 56

約数和(自身を含む): 1176898680

約数和(自身を除く): 530359515

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 89, 135, 243, 267, 405, 445, 729, 801, 1215, 1335, 1993, 2403, 3645, 4005, 5979, 7209, 9965, 12015, 17937, 21627, 29895, 36045, 53811, 64881, 89685, 108135, 161433, 177377, 269055, 324405, 484299, 532131, 807165, 886885, 1452897, 1596393, 2421495, 2660655, 4789179, 7264485, 7981965, 14367537, 23945895, 43102611, 71837685, 129307833, 215513055, 646539165]

約数ペア:

[(1, 646539165), (3, 215513055), (5, 129307833), (9, 71837685), (15, 43102611), (27, 23945895), (45, 14367537), (81, 7981965), (89, 7264485), (135, 4789179), (243, 2660655), (267, 2421495), (405, 1596393), (445, 1452897), (729, 886885), (801, 807165), (1215, 532131), (1335, 484299), (1993, 324405), (2403, 269055), (3645, 177377), (4005, 161433), (5979, 108135), (7209, 89685), (9965, 64881), (12015, 53811), (17937, 36045), (21627, 29895)]