20197730295

素因数分解:

$3^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{198689}}^1$

素因数の和:198957

約数の個数: 40

約数和(自身を含む): 36350732880

約数和(自身を除く): 16153002585

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 251, 405, 753, 1255, 2259, 3765, 6777, 11295, 20331, 33885, 101655, 198689, 596067, 993445, 1788201, 2980335, 5364603, 8941005, 16093809, 26823015, 49870939, 80469045, 149612817, 249354695, 448838451, 748064085, 1346515353, 2244192255, 4039546059, 6732576765, 20197730295]

約数ペア:

[(1, 20197730295), (3, 6732576765), (5, 4039546059), (9, 2244192255), (15, 1346515353), (27, 748064085), (45, 448838451), (81, 249354695), (135, 149612817), (251, 80469045), (405, 49870939), (753, 26823015), (1255, 16093809), (2259, 8941005), (3765, 5364603), (6777, 2980335), (11295, 1788201), (20331, 993445), (33885, 596067), (101655, 198689)]